Circumcision was the sign of the promise, i.e., it was the sign of the gospel. When the law of Moses came, hundreds of years after Abraham, it came in partial fulfillment of the covenant with Abraham (Exod. 2:24–25). It was a temporary administration of shadows, ceremonies, and types, all designed, when rightly understood, to prepare the way for the fulfillment of the promise to Abraham. Abraham had been shown the blueprints of a great house, and he believed that God would in fact build it (Gal. 3:6, 8).
