How does the New Testament define the message of salvation?

In the New Testament, the message of salvation is clearly defined as believing in the Lord Jesus Christ. As articulated throughout Scripture, particularly in passages like John 14:6, Christ identifies Himself as 'the way, the truth, and the life.' This encapsulates the entirety of the Gospel message, which emphasizes that true salvation comes exclusively through faith in Jesus. The work of the Holy Spirit in revealing this truth is indispensable, as it transforms the hearts of individuals, making them receptive to the clear, albeit counterintuitive, reality that salvation is entirely the work of God, not of human striving or merit.