Being that in our course of questions we have to the question, “Why then the Law?” it is fitting that we remain with the one who drove us most quickly to the point—the apostle Paul. He answers this question, writing:
Why then the law? It was added because of transgressions, until the offspring should come to whom the promise had been made, and it was put in place through angels by an intermediary. Now an intermediary implies more than one, but God is one.
Is the law then contrary to the promises of God? Certainly not! For if a law had been given that could give life, then righteousness would indeed be by the law. But the Scripture imprisoned everything under sin, so that the promise by faith in Jesus Christ might be given to those who believe (Gal. 3:19-22).
To answer our present question, “Why then the Law?” the most obvious course is to unpack the answer that the apostle gives. However, before we begin to answer that question, it is good to reiterate what has brought us to this point.