Parallel
Galatians 4:30
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Nevertheless what saith the scripture? Cast out the bondwoman and her son: for the son of the bondwoman shall not be heir with the son of the freewoman.
But what does the Scripture say? “Expel the slave woman and her son (note: Genesis 21:10), for the slave woman’s son will never share in the inheritance with the free woman’s son.”