The Christian gospel (good news) is about new creation to life through knowing Christ, who is the embodiment of God’s word.
Let’s see how the apostle Paul does evangelism:
2 Corinthians 5:11-21
Common English Bible (CEB)
Ministry of reconciliation
11 So we try to persuade people, since we know what it means to fear the Lord. We are well known by God, and I hope that in your heart we are well known by you as well. 12 We aren’t trying to commend ourselves to you again. Instead, we are giving you an opportunity to be proud of us so that you could answer those who take pride in superficial appearance, and not in what is in the heart.
13 If we are crazy, it’s for God’s sake. If we are rational, it’s for your sake. 14 The love of Christ controls us, because we have concluded this: one died for the sake of all; therefore, all died. 15 He died for the sake of all so that those who are alive should live not for themselves but for the one who .
16 So then, from this point on we won’t recognize people by human standards. Even though we used to know Christ by human standards, that isn’t how we know him now. 17 So then, if anyone is in Christ, that person is part of the new creation. The old things have gone away, and look, new things have arrived!
18 All of these new things are from God, who reconciled us to himself through Christ and who gave us the ministry of reconciliation. 19 In other words, God was reconciling the world to himself through Christ, by . He has trusted us with this message of reconciliation.
20 So we are ambassadors who represent Christ. God is negotiating with you through us. We beg you as Christ’s representatives, “Be reconciled to God!” 21 God caused the one who didn’t know sin to be sin for our sake so that through him we could become the righteousness of God.
Christians are ambassadors who represent Christ — Messiah — the promised King of Israel. The crucified, risen and glorified King of Israel is now establishing the righteous reign (kingdom of justice) of the one true God: YHWH the God of Israel. And as Christians, having been reconciled to God, we are then to become God’s righteousness, i.e. to become like Christ (Eph 4:23-24; Jer 9:23-24).
It then appears that the evangelistic appeal is that the world “be reconciled to God!” (2 Cor 5:20-21)