Peter began to preach the full revelation of the Good News of the fulfillment of the promises to Abraham on the Day of Pentecost, as Luke recorded it in Acts 2.
Without getting into the specifics right now, consider that Peter convicted the Jews of killing the Son of God, and knowing that grievous sin would lead to eternal separation from God—which if you remember The Family Promise of God, He does not want that for us, and believe me, we do not want that for ourselves—those people cried out what should they do, to which Peter gave an answer that deals with the promise to Abraham, which I will reveal at another time,
Then Peter said to them, “Repent, and let every one of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit” (Acts 2.38).
If you want a part in the story of the Bible, do what Peter said.
- The Foundation of the Story of the Bible (Part 3) (theoldtestamentandthenewtestament.com)
- Sermon: Were You Converted, Or Were You Just Baptized? (grantspasschurchofchrist.com)
- The Foundation of the Story of the Bible (Part 2) (theoldtestamentandthenewtestament.com)
- The Bible In Our World (Part 21) (thebiblemeditator.wordpress.com)