Galatians 4:22

For it is written that Abraham had two sons, one by the bondwoman and one by the free woman.

Genesis 16:15

So Hagar bore Abram a son; and Abram called the name of his son, whom Hagar bore, Ishmael.

Genesis 16:2-4

So Sarai said to Abram, “Now behold, the Lord has prevented me from bearing children. Please go in to my maid; perhaps I will obtain children through her.” And Abram listened to the voice of Sarai.

Genesis 21:1-2

Then the Lord took note of Sarah as He had said, and the Lord did for Sarah as He had promised.

Genesis 21:10

Therefore she said to Abraham, “Drive out this maid and her son, for the son of this maid shall not be an heir with my son Isaac.”

Treasury of Scripture Knowledge

Summary

Galatians 4:22

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

That

Genesis 16:2

Genesis 21:1

Bible References

That

Then the Lord took note of Sarah as He had said, and the Lord did for Sarah as He had promised.