Why is it important for Christians to believe in the cross?

The cross is not merely an event in history; it is the cornerstone of Christian faith and the means by which God provides redemption for sinners. Galatians 2:20 states, 'I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.' This passage reveals that our identity and life are intricately linked to Christ's death and resurrection. It emphasizes that through Christ's atonement, believers are brought into a personal relationship with God, grounded in His grace, which is a central aspect of sovereign grace theology.