17 This is what I mean: the law, which came 430 years afterward, does not annul a covenant previously ratified by God, so as to make the promise void. 18 For if the inheritance comes by the law, it no longer comes by promise; but God gave it to Abraham by a promise.
19 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. 20 Now an intermediary implies more than one, but God is one.
21 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. 22 But the Scripture imprisoned everything under sin, so that the promise by faith in Jesus Christ might be given to those who believe.
(ESV)
STOP! Think a little đ¤ What is God saying to you?
- What is the writer saying?
- How do I apply this to my life?
Paul continues to explain the link between the promise of Abraham and Christ and how the law fits in. The law came 430 years after the promise. But the arrival of the law doesnât annul (cancel out) the promise. The promise never had a condition on the law because if it did, then it would no longer be a promise. I could promise to give you something or I could promise to give you something if you did something else first. The first is a promise based entirely on me, the second is based on a condition you have to fulfil. Paul is pointing out that the promise never had a condition and the law didnât come to change the promise.
So why then did God give us the law? Because people werenât living Godâs way. The law was put in place to show people that God had expectations that they were not living up to. The law was put in place through angels. This is not something that the Old Testament speaks about at all. It was known through Jewish oral tradition and now Paul, by inspiration of the Holy Spirit, confirms it. The law was also given by an intermediary, a mediator, and that we know was Moses. The need for a mediator implies more than one party, but God is one. For the promise, there was no mediator because God is the only one responsible for honouring the promise. With the law, there are two parties involved, God and man and therefore a mediator is needed because both sides have obligations to the agreement. The strength of the promise is that everything depends on God and nothing depends on man.
So if thereâs a law and a promise, does the law contradict the promise? No, because if the law could have given life, then righteousness could come by the law (remember this is what the Judaizers were arguing) but all the Scripture (the law) did was to imprison everything under sin by showing us that we have no ability to keep our side of the dealâwe have all sinned and fall short of the glory of God (Rom 3:23). But the promise releases us from that imprisonment through faith in Jesus Christ to those who believe (Rom 6:23; John 1:12).
Can you see how futile it is to try to keep the law in order to be right with God? The law was put in place to prove that you canât keep it. You have no hope of keeping it. The promise on the other hand is completely separate from the lawâby 430 years. The two are not linked. God made a promise that doesnât depend on you. God kept that promise in Jesus. That promise is available to you by faith in Jesus Christ to you if you believe (Gal 3:22).