Treasury of Scripture Knowledge

Summary

For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman.

Bible References

That

Genesis 16:2
So Sarai said to Abram, “See here, the Lord has prevented me from bearing children. I am asking you to go in to [the bed of] my maid [so that she may bear you a child]; perhaps I will obtain children by her.” And Abram listened to Sarai and did as she said.
Genesis 21:1
The Lord graciously remembered and visited Sarah as He had said, and the Lord did for her as He had promised.