Sara is 1 of the 3 wives of a Turk.
Sara is not a Jewish Folk, but 1 woman.
Ishak is not a Jewish Folk. Ishak is 1 child.
Ishak is Turkish sperm.
Sara, Ishak, Essau are not in the covenant or chosen. The Children of Yakub(Israil) are in the covenant. God never chose a Jew Folk.