Acts 2:38

Peter calls for each one of them individually (bekastos, but NIV every one) to be baptized … in (on the basis of) the name of Jesus Christ – that is, as Joseph Addison Alexander puts it, “by his authority, acknowledging his claim, subscribing to his doctrine, engaging in his service, and relying on his merits” (quoted in Stott 1990:78).  By repentance and baptism we show that we have met the conditions for receiving forgiveness of sins and the gift of the Spirit. By making repentance and baptism conditions for the reception of salvation blessings, Luke does not imply that salvation comes by merit or ritual. He is not promoting some necessary second experience. He consistently presents both forginess and the Spirit as gifts of grace (3:19; 5:31; 13:38; 11:17; 15:8). The gift of the Spirit is the Spirit himself, who regenerates, indwells, unites, and transforms lives.  All the fruit and gifts of the Spirit flow from this one great gift.

Repent and be Baptized, two key things one must do on the way to being saved! Hear, Believe, Repent, Be Baptized, and they continue to follow.