Treasury of Scripture Knowledge
Summary
For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman.
That
Bible References
That
Genesis 16:2
So Sarai told Abram, "You are well aware that the LORD has prevented me from giving birth to a child. Go have sex with my servant, so that I may possibly bear a son through her."
Genesis 21:1
The LORD came to Sarah, just as he had said, and the LORD did for Sarah what he had promised.