Genesis 17:15-Genesis 18:21 - Isaac's Birth Promised
15 And God said unto Abraham, "Sarai, thy wife, shall no more be called Sarai: but Sara shall her name be. 16 For I will bless her and give thee a son of her; and will bless her so that people, yea and kings of people, shall spring of her."
17 And Abraham fell upon his face and laughed, and said in his heart, "Shall a child be born unto him that is a hundred years old? And shall Sara, that is ninety years old, bear?" 18 And Abraham said unto God, "O that Ishmael might live in thy sight!"
19 Then said God, "Nay. Sara thy wife shall bear thee a son, and thou shalt call his name Isaac. And I will make my covenant with him, that it shall be an everlasting covenant unto his seed after him. 20 And as concerning Ishmael also, I have heard thy request: lo, I will bless him and increase him, and multiply him exceedingly. Twelve princes shall he beget, and I will make a great nation of him. 21 But my covenant will I make with Isaac, which Sara shall bear unto thee: even this time, twelve month." 22 And God left off talking with him, and departed up from Abraham.
23 And Abraham took Ishmael his son, and all the servants born in his house, and all that was bought with money; as many as were men children among the men of Abraham's house, and circumcised the foreskin of their flesh, even the selfsame day, as God had said unto him. 24 Abraham was ninety years old and nine when he cut off the foreskin of his flesh. 25 And Ishmael his son was thirteen years old, when the foreskin of his flesh was circumcised. 26 The selfsame day was Abraham circumcised and Ishmael his son. 27 And all the men in his house, whether they were born in his house or bought with money, though they were strangers, were circumcised with him.
1 And the LORD appeared unto him in the oak grove of Mamre as he sat in his tent door in the heat of the day. 2 And he lift up his eyes and looked: and lo, three men stood not far from him. And when he saw them, he ran to meet them from the tent door, and fell to the ground 3 and said, "Lord, if I have found favour in thy sight, go not by thy servant. 4 Let a little water be fetched, and wash your feet, and rest yourselves under the tree: 5 And I will fetch a morsel of bread, to comfort your hearts withal. And then go your ways, for even therefore are ye come to your servant." And they answered, "Do even so as thou hast said."
6 And Abraham went a pace into his tent unto Sara, and said, Make ready at once three pecks of fine meal; knead it, and make cakes." 7 And Abraham ran unto his beasts and fetched a calf that was tender and good, and gave it unto a young man, which made it ready at once. 8 And he took butter and milk and the calf which he had prepared, and set it before them, and stood himself by them under the tree: and they ate.
9 And they said unto him, "Where is Sara, thy wife?" And he said, "In the tent."
10 And he said, "I will come again unto thee as soon as the fruit can live. And lo, Sara thy wife shall have a son." That heard Sara, out of the tent door which was behind his back.
11 Abraham and Sara were both old and well stricken in age, and it ceased to be with Sara after the manner as it is with wives. 12 And Sara laughed in herself saying, "Now I am waxed old, shall I give myself to lust, and my lord old also?"
13 Then said the LORD unto Abraham, "Wherefore doth Sara laugh saying, 'shall I of a surety bear a child, now when I am old?' 14 Is the thing too hard for the LORD to do? In the time appointed will I return unto thee, as soon as the fruit can have life. And Sara shall have a son."
15 Then Sara denied it, saying, "I laughed not." For she was afraid. But he said, "Yes, thou laughtest."
16 Then the men stood up from thence and looked toward Sodom. And Abraham went with them to bring them on the way. 17 And the LORD said, "Can I hide from Abraham that thing which I am about to do, 18 seeing that Abraham shall be a great and a mighty people, and all the nations of the earth shall be blessed in him? 19 For I know him that he will command his children and his household after him, that they keep the way of the LORD, to do after right and conscience, that the LORD may bring upon Abraham that he hath promised him." 20 And the LORD said, "The cry of Sodom and Gomorrah is great, and their sin is exceeding grievous. 21 I will go down and see whether they have done altogether according to that cry which is come unto me or not, that I may know."