Why is the concept of the law important for Christians?

The law of God is vital for Christians because it serves as our tutor, pointing us towards Christ. As explained in Galatians 3:24, the law reveals our sinful nature and our inability to fulfill its demands, as we are all fallen in Adam. It highlights our need for a Savior since we cannot attain righteousness through our works. Moses, representing the law, could not lead the Israelites into the Promised Land, which symbolizes that the law cannot provide salvation. Instead, it is through Christ, our Joshua, that we receive grace and can be justified. The law thus serves to amplify the necessity of grace found in Jesus Christ.