Genesis chapter 16:1-15

Now Sarai Abram's wife bare him no children: and she had an handmaid, an Egyptian, whose name was Hagar.

And Sarai said unto Abram, Behold now, the LORD hath restrained me from bearing: I pray thee, go in unto my maid; it may be that I may obtain children by her. And Abram hearkened to the voice of Sarai.

And Sarai Abram's wife took Hagar her maid the Egyptian, after Abram had dwelt ten years in the land of Canaan, and gave her to her husband Abram to be his wife.

And he went in unto Hagar, and she conceived: and when she saw that she had conceived, her mistress was despised in her eyes.

And Sarai said unto Abram, My wrong be upon thee: I have given my maid into thy bosom; and when she saw that she had conceived, I was despised in her eyes: the LORD judge between me and thee.

But Abram said unto Sarai, Behold, thy maid is in thy hand; do to her as it pleaseth thee. And when Sarai dealt hardly with her, she fled from her face.

And the angel of the LORD found her by a fountain of water in the wilderness, by the fountain in the way to Shur.

And he said, Hagar, Sarai's maid, whence camest thou? and whither wilt thou go? And she said, I flee from the face of my mistress Sarai.

And the angel of the LORD said unto her, Return to thy mistress, and submit thyself under her hands.

And the angel of the LORD said unto her, I will multiply thy seed exceedingly, that it shall not be numbered for multitude.

And the angel of the LORD said unto her, Behold, thou art with child, and shalt bear a son, and shalt call his name Ishmael; because the LORD hath heard thy affliction.

And he will be a wild man; his hand will be against every man, and every man's hand against him; and he shall dwell in the presence of all his brethren.

And she called the name of the LORD that spake unto her, Thou God seest me: for she said, Have I also here looked after him that seeth me?

Wherefore the well was called Beerlahairoi; behold, it is between Kadesh and Bered.

And Hagar bare Abram a son: and Abram called his son's name, which Hagar bare, Ishmael.

Genesis chapter 18:1-15

And the LORD appeared unto him in the plains of Mamre: and he sat in the tent door in the heat of the day;

And he lift up his eyes and looked, and, lo, three men stood by him: and when he saw them, he ran to meet them from the tent door, and bowed himself toward the ground,

And said, My Lord, if now I have found favour in thy sight, pass not away, I pray thee, from thy servant:

Let a little water, I pray you, be fetched, and wash your feet, and rest yourselves under the tree:

And I will fetch a morsel of bread, and comfort ye your hearts; after that ye shall pass on: for therefore are ye come to your servant. And they said, So do, as thou hast said.

And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes upon the hearth.

And Abraham ran unto the herd, and fetcht a calf tender and good, and gave it unto a young man; and he hasted to dress it.

And he took butter, and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they did eat.

And they said unto him, Where is Sarah thy wife? And he said, Behold, in the tent.

And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him.

Now Abraham and Sarah were old and well stricken in age; and it ceased to be with Sarah after the manner of women.

Therefore Sarah laughed within herself, saying, After I am waxed old shall I have pleasure, my lord being old also?

And the LORD said unto Abraham, Wherefore did Sarah laugh, saying, Shall I of a surety bear a child, which am old?

Is any thing too hard for the LORD? At the time appointed I will return unto thee, according to the time of life, and Sarah shall have a son.

Then Sarah denied, saying, I laughed not; for she was afraid. And he said, Nay; but thou didst laugh.

Genesis chapter 21, 1-7

And the LORD visited Sarah as he had said, and the LORD did unto Sarah as he had spoken.

For Sarah conceived, and bare Abraham a son in his old age, at the set time of which God had spoken to him.

And Abraham called the name of his son that was born unto him, whom Sarah bare to him, Isaac.

And Abraham circumcised his son Isaac being eight days old, as God had commanded him.

And Abraham was an hundred years old, when his son Isaac was born unto him.

And Sarah said, God hath made me to laugh, so that all that hear will laugh with me.

And she said, Who would have said unto Abraham, that Sarah should have given children suck? for I have born him a son in his old age.