Why is understanding the gospel command important for Christians?

The command of the gospel is to believe and repent, which reflects God's sovereignty in salvation. This is highlighted in 2 Corinthians 5:17, where believers are called to be new creations in Christ, emphasizing a change that is initiated and sustained by God. When the gospel calls us, it is not an invitation to consider, but a divine command that brings spiritual life. Romans 10:9-10 underscores that confessing with the mouth and believing in the heart are acts of submission to God's revelation, not mere decisions made in human ability. This understanding aligns with the teaching that salvation is by grace alone and not a result of human effort.