LESSON FOUR
Abraham and the Promise of Isaac
Abraham and his large household travel from Ur to Canaan, then to Egypt, and then back to Canaan—the land of God’s promise. By now Abraham is aging and his wife is barren. How will God fulfill his promises to give them this land, to give them descendants, and to bless the world through their line? Although it looks like God’s plan faces an insurmountable obstacle, God calls Abraham and Sarah to trust him. He will give them a son, Isaac, and through him blessing to the nations will come.
These chapters highlight a pattern in the Bible’s story: God is a God of promise, and his people are men and women of faith. God speaks his word of promise, his people trust him, and he counts it to them as righteousness. God accepts people not on the basis of their moral goodness but on the basis of his mercy and grace.
SCRIPTURE READING
Genesis 15-18
Reading Time: 11 Minutes
After these things the word of the Lord came to Abram in a vision: “Fear not, Abram, I am your shield; your reward shall be very great.” But Abram said, “O Lord God, what will you give me, for I continue childless, and the heir of my house is Eliezer of Damascus?” And Abram said, “Behold, you have given me no offspring, and a member of my household will be my heir.” And behold, the word of the Lord came to him: “This man shall not be your heir; your very own son shall be your heir.” And he brought him outside and said, “Look toward heaven, and number the stars, if you are able to number them.” Then he said to him, “So shall your offspring be.” And he believed the Lord, and he counted it to him as righteousness.
And he said to him, “I am the Lord who brought you out from Ur of the Chaldeans to give you this land to possess.” But he said, “O Lord God, how am I to know that I shall possess it?” He said to him, “Bring me a heifer three years old, a female goat three years old, a ram three years old, a turtledove, and a young pigeon.” And he brought him all these, cut them in half, and laid each half over against the other. But he did not cut the birds in half. And when birds of prey came down on the carcasses, Abram drove them away.
As the sun was going down, a deep sleep fell on Abram. And behold, dreadful and great darkness fell upon him. Then the Lord said to Abram, “Know for certain that your offspring will be sojourners in a land that is not theirs and will be servants there, and they will be afflicted for four hundred years. But I will bring judgment on the nation that they serve, and afterward they shall come out with great possessions. As for you, you shall go to your fathers in peace; you shall be buried in a good old age. And they shall come back here in the fourth generation, for the iniquity of the Amorites is not yet complete.”
When the sun had gone down and it was dark, behold, a smoking fire pot and a flaming torch passed between these pieces. On that day the Lord made a covenant with Abram, saying, “To your offspring I give this land, from the river of Egypt to the great river, the river Euphrates, the land of the Kenites, the Kenizzites, the Kadmonites, the Hittites, the Perizzites, the Rephaim, the Amorites, the Canaanites, the Girgashites and the Jebusites.”
Now Sarai, Abram’s wife, had borne him no children. She had a female Egyptian servant whose name was Hagar. And Sarai said to Abram, “Behold now, the Lord has prevented me from bearing children. Go in to my servant; it may be that I shall obtain children by her.” And Abram listened to the voice of Sarai. So, after Abram had lived ten years in the land of Canaan, Sarai, Abram’s wife, took Hagar the Egyptian, her servant, and gave her to Abram her husband as a wife. And he went in to Hagar, and she conceived. And when she saw that she had conceived, she looked with contempt on her mistress. And Sarai said to Abram, “May the wrong done to me be on you! I gave my servant to your embrace, and when she saw that she had conceived, she looked on me with contempt. May the Lord judge between you and me!” But Abram said to Sarai, “Behold, your servant is in your power; do to her as you please.” Then Sarai dealt harshly with her, and she fled from her.
The angel of the Lord found her by a spring of water in the wilderness, the spring on the way to Shur. And he said, “Hagar, servant of Sarai, where have you come from and where are you going?” She said, “I am fleeing from my mistress Sarai.” The angel of the Lord said to her, “Return to your mistress and submit to her.” The angel of the Lord also said to her, “I will surely multiply your offspring so that they cannot be numbered for multitude.” And the angel of the Lord said to her,
“Behold, you are pregnant and shall bear a son.
You shall call his name Ishmael,
because the Lord has listened to your affliction.
He shall be a wild donkey of a man,
his hand against everyone
and everyone’s hand against him,
and he shall dwell over against all his kinsmen.”
So she called the name of the Lord who spoke to her, “You are a God of seeing,” for she said, “Truly here I have seen him who looks after me.” Therefore the well was called Beer-lahai-roi; it lies between Kadesh and Bered.
And Hagar bore Abram a son, and Abram called the name of his son, whom Hagar bore, Ishmael. Abram was eighty-six years old when Hagar bore Ishmael to Abram.
When Abram was ninety-nine years old the Lord appeared to Abram and said to him, “I am God Almighty; walk before me, and be blameless, that I may make my covenant between me and you, and may multiply you greatly.” Then Abram fell on his face. And God said to him, “Behold, my covenant is with you, and you shall be the father of a multitude of nations. No longer shall your name be called Abram, but your name shall be Abraham, for I have made you the father of a multitude of nations. I will make you exceedingly fruitful, and I will make you into nations, and kings shall come from you. And I will establish my covenant between me and you and your offspring after you throughout their generations for an everlasting covenant, to be God to you and to your offspring after you. And I will give to you and to your offspring after you the land of your sojournings, all the land of Canaan, for an everlasting possession, and I will be their God.”
And God said to Abraham, “As for you, you shall keep my covenant, you and your offspring after you throughout their generations. This is my covenant, which you shall keep, between me and you and your offspring after you: Every male among you shall be circumcised. You shall be circumcised in the flesh of your foreskins, and it shall be a sign of the covenant between me and you. He who is eight days old among you shall be circumcised. Every male throughout your generations, whether born in your house or bought with your money from any foreigner who is not of your offspring, both he who is born in your house and he who is bought with your money, shall surely be circumcised. So shall my covenant be in your flesh an everlasting covenant. Any uncircumcised male who is not circumcised in the flesh of his foreskin shall be cut off from his people; he has broken my covenant.”
And God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai, but Sarah shall be her name. I will bless her, and moreover, I will give you a son by her. I will bless her, and she shall become nations; kings of peoples shall come from her.” Then Abraham fell on his face and laughed and said to himself, “Shall a child be born to a man who is a hundred years old? Shall Sarah, who is ninety years old, bear a child?” And Abraham said to God, “Oh that Ishmael might live before you!” God said, “No, but Sarah your wife shall bear you a son, and you shall call his name Isaac. I will establish my covenant with him as an everlasting covenant for his offspring after him. As for Ishmael, I have heard you; behold, I have blessed him and will make him fruitful and multiply him greatly. He shall father twelve princes, and I will make him into a great nation. But I will establish my covenant with Isaac, whom Sarah shall bear to you at this time next year.”
When he had finished talking with him, God went up from Abraham. Then Abraham took Ishmael his son and all those born in his house or bought with his money, every male among the men of Abraham’s house, and he circumcised the flesh of their foreskins that very day, as God had said to him. Abraham was ninety-nine years old when he was circumcised in the flesh of his foreskin. And Ishmael his son was thirteen years old when he was circumcised in the flesh of his foreskin. That very day Abraham and his son Ishmael were circumcised. And all the men of his house, those born in the house and those bought with money from a foreigner, were circumcised with him.
And the Lord appeared to him by the oaks of Mamre, as he sat at the door of his tent in the heat of the day. He lifted up his eyes and looked, and behold, three men were standing in front of him. When he saw them, he ran from the tent door to meet them and bowed himself to the earth and said, “O Lord, if I have found favor in your sight, do not pass by your servant. Let a little water be brought, and wash your feet, and rest yourselves under the tree, while I bring a morsel of bread, that you may refresh yourselves, and after that you may pass on—since you have come to your servant.” So they said, “Do as you have said.” And Abraham went quickly into the tent to Sarah and said, “Quick! Three seahs of fine flour! Knead it, and make cakes.” And Abraham ran to the herd and took a calf, tender and good, and gave it to a young man, who prepared it quickly. Then he took curds and milk and the calf that he had prepared, and set it before them. And he stood by them under the tree while they ate.
They said to him, “Where is Sarah your wife?” And he said, “She is in the tent.” The Lord said, “I will surely return to you about this time next year, and Sarah your wife shall have a son.” And Sarah was listening at the tent door behind him. Now Abraham and Sarah were old, advanced in years. The way of women had ceased to be with Sarah. So Sarah laughed to herself, saying, “After I am worn out, and my lord is old, shall I have pleasure?” The Lord said to Abraham, “Why did Sarah laugh and say, ‘Shall I indeed bear a child, now that I am old?’ Is anything too hard for the Lord? At the appointed time I will return to you, about this time next year, and Sarah shall have a son.” But Sarah denied it, saying, “I did not laugh,” for she was afraid. He said, “No, but you did laugh.”
Then the men set out from there, and they looked down toward Sodom. And Abraham went with them to set them on their way. The Lord said, “Shall I hide from Abraham what I am about to do, seeing that Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him? For I have chosen him, that he may command his children and his household after him to keep the way of the Lord by doing righteousness and justice, so that the Lord may bring to Abraham what he has promised him.” Then the Lord said, “Because the outcry against Sodom and Gomorrah is great and their sin is very grave, I will go down to see whether they have done altogether according to the outcry that has come to me. And if not, I will know.”
So the men turned from there and went toward Sodom, but Abraham still stood before the Lord. Then Abraham drew near and said, “Will you indeed sweep away the righteous with the wicked? Suppose there are fifty righteous within the city. Will you then sweep away the place and not spare it for the fifty righteous who are in it? Far be it from you to do such a thing, to put the righteous to death with the wicked, so that the righteous fare as the wicked! Far be that from you! Shall not the Judge of all the earth do what is just?” And the Lord said, “If I find at Sodom fifty righteous in the city, I will spare the whole place for their sake.”
Abraham answered and said, “Behold, I have undertaken to speak to the Lord, I who am but dust and ashes. Suppose five of the fifty righteous are lacking. Will you destroy the whole city for lack of five?” And he said, “I will not destroy it if I find forty-five there.” Again he spoke to him and said, “Suppose forty are found there.” He answered, “For the sake of forty I will not do it.” Then he said, “Oh let not the Lord be angry, and I will speak. Suppose thirty are found there.” He answered, “I will not do it, if I find thirty there.” He said, “Behold, I have undertaken to speak to the Lord. Suppose twenty are found there.” He answered, “For the sake of twenty I will not destroy it.” Then he said, “Oh let not the Lord be angry, and I will speak again but this once. Suppose ten are found there.” He answered, “For the sake of ten I will not destroy it.” And the Lord went his way, when he had finished speaking to Abraham, and Abraham returned to his place.
GENESIS 15-18
Study Guide Questions
- What does Abraham’s life teach us about the nature of true faith?
- How does God intentionally cultivate Abraham’s faith in these chapters?
- How are we, like Abraham and Sarah, tempted to doubt God and his promises today?
GENESIS 15
Family Discussion Questions
- Since Abraham’s faith is a very important part of this story, what specifically did Abraham believe?
- In light of what we learn about Abraham’s faith, what does it mean to believe and trust in God?
- How does this story show God’s grace and kindness to Abraham?
- What did God promise when he made a “covenant” with Abraham?
PART ONE REVIEW
The Story Begins
God creates a good world and fills it with communal life. He makes humanity in his image to know him and reflect his character and rule. But Adam and Eve shatter the peace of Eden through their sinful rejection of God. The Lord rightly responds with just judgment: man is sent out of God’s presence in Eden, living exiled from his true home with God and then eventually returning to dust in death. Yet God uses this now fallen world to display his infinite mercy through the story of redemption that follows. He promises to send a descendant of Eve, a Savior, to conquer the Evil One and restore the lost blessings of Eden to mankind.
God judges the world with a flood, yet he graciously preserves Noah and his family so that God might continue to unfold his promises to renew the world. The Lord then chooses to bless one man—Abraham—as the means of blessing for all peoples. In generation after generation God overcomes obstacles to ensure that his promise safely passes from Abraham to Isaac and to Jacob and to Jacob’s twelve sons. Even though these sons betray their brother Joseph by selling him into slavery, the Lord blesses Joseph and uses him to preserve his family when they move to Egypt in the midst of a famine.
LESSON FOUR
Abraham and the Promise of Isaac
Many years passed since God first promised to bless the world through Abraham’s many descendants. But Abraham was now very old, and his wife, Sarah, could not have children. It did not look like God’s plan could happen. Yet God still asked Abraham to trust him. He promised to give them a son, Isaac, and through him the blessing to all nations would come.
This chapter highlights a pattern in the Bible’s story. God is a God who promises great things, and his people are those who trust him to do what he says. And when people trust him, he counts it to them as righteousness. As was Abraham, we are accepted not because of anything good we do but because of God’s mercy and grace.
SCRIPTURE READING
Genesis 15:1-20
Reading Time: 3 Minutes
After these things the word of the Lord came to Abram in a vision: “Fear not, Abram, I am your shield; your reward shall be very great.” But Abram said, “O Lord God, what will you give me, for I continue childless, and the heir of my house is Eliezer of Damascus?” And Abram said, “Behold, you have given me no offspring, and a member of my household will be my heir.” And behold, the word of the Lord came to him: “This man shall not be your heir; your very own son shall be your heir.” And he brought him outside and said, “Look toward heaven, and number the stars, if you are able to number them.” Then he said to him, “So shall your offspring be.” And he believed the Lord, and he counted it to him as righteousness.
And he said to him, “I am the Lord who brought you out from Ur of the Chaldeans to give you this land to possess.” But he said, “O Lord God, how am I to know that I shall possess it?” He said to him, “Bring me a heifer three years old, a female goat three years old, a ram three years old, a turtledove, and a young pigeon.” And he brought him all these, cut them in half, and laid each half over against the other. But he did not cut the birds in half. And when birds of prey came down on the carcasses, Abram drove them away.
As the sun was going down, a deep sleep fell on Abram. And behold, dreadful and great darkness fell upon him. Then the Lord said to Abram, “Know for certain that your offspring will be sojourners in a land that is not theirs and will be servants there, and they will be afflicted for four hundred years. But I will bring judgment on the nation that they serve, and afterward they shall come out with great possessions. As for you, you shall go to your fathers in peace; you shall be buried in a good old age. And they shall come back here in the fourth generation, for the iniquity of the Amorites is not yet complete.”
When the sun had gone down and it was dark, behold, a smoking fire pot and a flaming torch passed between these pieces. On that day the Lord made a covenant with Abram, saying, “To your offspring I give this land, from the river of Egypt to the great river, the river Euphrates, the land of the Kenites, the Kenizzites, the Kadmonites, the Hittites, the Perizzites, the Rephaim, the Amorites, the Canaanites, the Girgashites and the Jebusites.”
SERMON SERIES
Finding Our Purpose in God’s Plan
These six messages belong to the Unfolding Grace: Finding Our Purpose in God’s Plan sermon series that author and pastor Drew Hunter preached at his home church. Through these six messages, he tells us the story of the Bible—a story that reveals the grace of God.
Genesis 1:1-3:24 | 38 Min
Exodus 12:1-25:40 | 34 Min
2 Samuel 7:1-19 | 36 Min
Ezekiel 36:16-32 | 37 Min
Mark 16:1-8 | 39 Min
Revelation 21:1-8 | 40 Min
BUY THE BOOK
Book Series
The content you enjoy in this Unfolding Grace Reading Plan comes from the Unfolding Grace book series by Pastor Drew Hunter, published by Crossway Publishers. We encourage you to purchase a physical copy of Unfolding Grace to use individually, with your family, or as a small group.
Unfolding Grace:
40 Guided Readings Through the Bible
Unfolding Grace Study Guide
Unfolding Grace for Kids:
A 40-Day Journey Through the Bible