The good news of the historical account of Jesus Christ.  Christians evangelize by proclaiming, as well as living, the message that Jesus, who is God in flesh (John 1:1,14; Col. 2:9), died on the cross, was buried, and physically rose from the dead three days later (1 Cor. 15:1-4).  It is the proclamation of the good news that we can be saved from the wrath of God through the loving sacrifice of the Lord Jesus Christ.