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
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.
Genesis 21:1
And the LORD visited Sarah as he had said, and the LORD did unto Sarah as he had spoken.

King James Version Public Domain