Genesis16

Now Sarai, Abram's wife, had born him to no children.  But she had an Egytian maidservant named Hagar, so she said to Abram, "The LORD had kept me from having children.  Go, sleep with my maidservant; perhaps I can build a family throuh her."

Abram agreed to what Sarai said.  So after Abram had been living in Canaan ten years, Sarai his wife took her Egyptian maidservant Hagar and gave her to her husband to be his wife.  He slpt with Hagar, and she conceived.

When she knew she was pregnant, she began to despise her mistress.  Then Sarai said to Abram, "You are responsible for the wrong I am suffering.  I put my servant in your arms, and now that she know she is pregnant, she despise me.  May the LORD judge between you and me."

"Your servant is in your hand,"  Abram said.  "Do with her whatever you think best."  Then Sarai mistreated Hagar; so she fled from her.

The angl of the LORD found Hagar near a spring in the desert; it was the spring that is beside the road to Shur.  And he said, "Hagar, servant of Sarai, where have you come from, and where are you going?"

"I'm running away from my mistress Sarai," she answered.

Then the angel of the LORD told her, "Go back to your mistress and submit to her."  The angel added, "I will so increase your descendants that they will be too numerous to count."

The angel of the LORD also said to her:

"You are now with child and you will have a son. 

You shall name him Ishmael,  for the LORD has heard of your misery. 

He will be a wild donkey of a man; his hand will be against everyone and everyone's hand against him,

 and he will live in hostility to ward all his brothers."

She gave his name to the LORD who spoke her:  "You are the God who sees me,"  for she said, :I have now seen the One who sees me."  That is why the well was called Beer Lahai Roi; it is still there, between Kadash and Bered.

So Hagar bore Abram a son, and Abram gave the name Ishmael to the son she had borne.  Abram was eighty-six years old when Hagar bore him Ishmael.