“For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.” (Romans 1:16)
In this verse we are told that God’s power resides in the gospel—and indeed, that the purpose of this power is the salvation of both Jew and Greek. This passage is intended to incorporate spreading the gospel to all humanity, which is specifically commanded by the Lord Jesus: “Go ye into all the world, and preach the gospel to every creature” (Mark 16:15).
Evidently, the event that takes place when one is twice-born is nothing less than a supernatural “creation” by the Creator Himself (Ephesians 4:24)! There is no need for salesmanship or psychology or finesse or technique; the dunamis (power) of the living God is transmitted, applied, and exercised as the gospel is spoken and a person listens.