One of my teachers gave an incredible parallel of the law of God in the Bible and of an MRI or X-ray.
Both reveal that something is broken or cancerous but cannot by themselves fix or cure it.
The law’s sole purpose was to help us see our need for a doctor or a Savior.
“…because no one can be made right with God by following the law. The law only shows us our sin.” – Romans 3:20
“So what was the law for?
It was given to show that the wrong things people do are against God’s will. And it continued until the special descendant, who had been promised, came. The law was given through angels who used Moses for a mediator to give the law to people. But a mediator is not needed when there is only one side, and God is only one.
Does this mean that the law is against God’s promises? Never! That would be true only if the law could make us right with God. But God did not give a law that can bring life. Instead, the Scriptures showed that the whole world is bound by sin. This was so the promise would be given through faith to people who believe in Jesus Christ.
Before this faith came, we were all held prisoners by the law. We had no freedom until God showed us the way of faith that was coming. In other words, the law was our guardian leading us to Christ so that we could be made right with God through faith. Now the way of faith has come, and we no longer live under a guardian.
– You were all baptized into Christ, and so you were all clothed with Christ. This means that you are all children of God through faith in Christ Jesus.” – Galatians 3:19-27
Augustine wrote, “The law binds us, as we try to fulfill its requirements, and become wearied in our weakness under it, to know how to ask for the help of grace.”