What is the only message that faithful servants of God should proclaim?

The primary message that faithful servants are called to proclaim is the gospel of Jesus Christ, which centers on His sacrificial death and resurrection. 1 Samuel 12 highlights that true servants of God must remind people of God's righteousness and their own sinfulness while pointing them to the hope found in Christ. Paul reinforces this in 1 Corinthians 2:2, stating that he resolved to know nothing but Christ and Him crucified. This message must remain the focus of every Christian's witness, as it embodies the essence of the Christian faith—God's love and redemption through Christ's work. As servants, believers are entrusted with this transformative message, tasked to share it widely without alteration.