Why is trusting in Christ alone important for Christians?

The call to trust in Christ alone is vital because it emphasizes our total dependence on His finished work for salvation. In Galatians 3:1-2, Paul rebukes the Galatians for turning away from the truth of the gospel, implying that their reliance on the law undermined the work of Christ. He questions, 'who hath bewitched you?' indicating that turning to the law is a form of disobedience to the truth of Christ. True righteousness is found not in our ability to keep the law, but in faith in the one who fulfilled the law perfectly.