Romans 3:20 ERV
[20] because no one can be made right with God by following the law. The law only shows us our sin.
https://bible.com/bible/406/rom.3.20.ERV
Most times we think we can impress God and others with our good things. Actually, we believe we can convince others of our good behaviors by doing good things.
God, however, is not necessarily impressed by any of our good actions.
Doing the right stuff does not endears us to God’s right standing.
It is only through Jesus we have access to God.
Obeying all the laws does not makes us sinless; it only makes us realize how awfully sinful we are.