Throughout this argument, one critical question remains: why would God give the law if it would not bring His people into a right standing with Him? Couldn’t God have found a better way of doing this? It isn’t as if the law is a bad thing or a mistake that God needs to correct. It has a good purpose, but a limited one. It never supplants God’s promise to Abraham. Rather, the law keeps sin in check until the time is right for the saving justice that comes through faith in Jesus. The law serves as a tutor or a schoolmaster, revealing our great need for salvation and pointing everyone toward Jesus.