Why is relying on Christ for righteousness important?

The importance of relying solely on Christ for righteousness lies in the biblical truth that our own works can never justify us before a holy God. Romans 4:5 states, 'But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness.' This reinforces that our hope of righteousness is founded not on our deeds but on the finished work of Christ. It is in Christ alone that we find complete justification; our attempts to improve our standing cannot add to His sufficiency.