Genesis 16:1-2

King James Version

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

² 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.