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
Wherefore she said unto Abram, "Behold the LORD hath closed me, that I can not bear. I pray thee go in unto my maid, peradventure I shall be multiplied by means of her." And Abram heard the voice of Sarai.
Genesis 21:1
The LORD visited Sara as he had said, and did unto her according as he had spoken.