Paul continues to show the Jews their sin. In this section he points out that the they, and we, must not only be hearers of the Law but doers also. We see that somehow the Law must be kept perfectly. Since no man can do this, we look to Jesus who has done it perfectly for us, if we are trusting in Him. We next see that we can know we are trusting in Jesus by our own changed lives. If we live a life of obedience, then we know that we are truly trusting in Jesus.