Sign of the Covenant
You see, people often see a stark division between the Old and New Testament. Some will suggest that there is a God of the Old and a different God in the New. They see very little continuity between the Testaments or the way that God acts. But we as Christians know that this is not the case. There is one covenant-making God. He might have made different covenants at different times and set different terms, but he is the same God.