What does the Bible say about ministers of the New Testament?

In 2 Corinthians 3:6, Paul identifies himself and other ministers of the New Testament as 'able ministers' made sufficient by God. They are not of the letter, which killeth, but of the Spirit, which gives life. This highlights the transformative power of the gospel, which is not merely a written word but a living declaration of Christ's work in believers. The key function of ministers is to faithfully preach the truth of the gospel as instruments through which God works to convert sinners and edify the church.