ISB ~ John 8 v35

The slave … the son:Jesus alludes to the story of Abraham’s two sons, Ishmael and Isaac, to demonstrate that genealogical descent from the patriarch does not guarantee the blessing of divine sonship in the New Covenant.

• Ishmael was born to Abraham by a slave woman, Hagar (Gen 16:15), while Isaac was born to Abraham by his lawful wife, Sarah (Gen 21:3). Though both were the nat

ural sons of Abraham, Ishmael was later expelled from Abraham’s family, disinherited, and excluded from the blessings of the covenant (Gen 17:19-21; 21:10-14). Jesus applies this narrative to the sons of Abraham in his own day: Unless they accept him in faith and become sons of God (1:12), they will follow the way of Ishmael, being driven out from the house of Abraham and cut off from the blessings promised to his descendants (Gal 4:21-31).