4 Bible Verses about God's Covenant With The Patriarchs

Then God made with Abraham the Covenant of Circumcision; and under it Abraham became the father of Isaac, and circumcised him when he was eight days old; and Isaac became the father of Jacob; and Jacob of the Twelve Patriarchs.

You yourselves are the heirs of the Prophets, and heirs, too, of the Covenant which God made with your ancestors, when he said to Abraham--'In your descendants will all the nations of the earth be blessed.'

For they are Israelites, and theirs are the adoption as Sons, the visible Presence, the Covenants, the revealed Law, the Temple worship, and the Promises.

My point is this--An agreement already confirmed by God cannot be canceled by the Law, which came four hundred and thirty years later, so as to cause the promise to be set aside.