The following is from Michael Green, Evangelism in the Early Church, Revised Edition, (Grand Rapids, Mich.: William B. Eerdmans, 1970, 2003), 82-84. Speaking of the content of the gospel in the first century, Michael Green writes:
“In the first place, it is a message with a quite specific content. It is always to euaggelion, the gospel. it is a recognizable message which a man can proclaim (Mark 1:14, 13:10) and believe in (Mark 1:15). It can be called the good news of God’s kingly rule (Mark 1:14f), or simply of the one who inaugurates that rule, Jesus (Mark 1:1). He is in fact identified with ‘the gospel’ in two places in Mark, and intimately connected with it in another (Mark 8:35, 10:29 and 14:9).
… Within this framework Mark makes it clear that the good news centres on the redemptive death of Jesus.
But although it is absolutely universal in its offer, Mark knows that the good news is only effective among those who repent, believe, and are prepared to engage in costly, self-sacrificial discipleship (Mark 1:15. 8:35). Only the person who is prepared to lose his life for the sake of Christ and the gospel can find it; for it was only by losing his life for the sake of others that Christ could offer new life to mankind, …”
Question: How clear are these historical facts in your gospel presentation?