Acts 7:8

And he gave him the covenant of circumcision. And so Abraham became the father of Isaac, and circumcised him on the eighth day; and Isaac became the father of Jacob, and Jacob of the twelve patriarchs.

Galatians 3:17

What I mean is this: the Law, which came four hundred and thirty years later, does not invalidate a covenant previously ratified by God, so as to nullify the promise.

Hebrews 6:17

So when God desired to show more convincingly to the heirs of the promise the unchangeable character of his purpose, he interposed with an oath,

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