The Enduring Heritage of Faith - Abraham and the Sacrifice of the Heir

The writer's final example of Abraham's faith is his sacrifice of Isaac. This is fitting, for this episode was the greatest challenge to Abraham's faith, and so its greatest proof. This is because Abraham's faith was directed toward the God who'd entered into covenant with him, and the veracity of the covenant - and so the covenanting God - was bound up in Isaac, the covenant heir.