The 10 Commandments don't make anyone holy - Romans 5:20

The Old Covenant, with its laws and commandments, was never conceived by God to sanctify us. God gave us the commandments to help us realize that we can never become so perfect and holy on our own to meet God’s perfect standards. The Bible tells us clearly:

“God’s law was given so that all people could see how sinful they were. But as people sinned more and more, God’s wonderful grace became more abundant.” (Romans 5:20; NLT)

The 10 commandments are great, but they do not help us to become great, perfect, and holy. It will only happen if we accept the finished work of Jesus by faith.