Acts 2:14-41
2:19–21 The darkened sun and bloody moon, whether literal or symbolic, indicate the final consummation of the earth. Peter included the full prophecy even though not all of it was yet fulfilled. Peter’s quotation from Joel ended with the key verse (Joel 2:32), which assures that everyone who calls upon the name of the Lord shall be saved. Although the audience would have thought the God of Israel is meant, for Peter the “name of the Lord” that saves is Jesus (see Acts 2:36; cf. 4:12). Peter’s application of the title “Lord” (Joel 2:32) to Jesus points to his deity.
2:31 he foresaw and spoke about the resurrection of the Christ. Peter affirms that David, who was not only a king but also “a prophet” (v. 30), was able to foresee that Christ would be raised from the dead. Throughout the OT God was leading his prophets to predict the events of Christ’s earthly life (cf. Luke 24:25–27; Acts 3:18; 1 Pet. 1:18–20). Acts 2:30–31 looks back to the citation in v. 27 and forward to the seating in v. 34, linking Peter’s argument together by an allusion to Psalm 132 and God’s promise to David.
2:32. The Scripture was clear; they were eyewitnesses that Jesus fulfilled it, and their witness is confirmed by the outpouring of the Spirit, which has no other biblical explanation (2:16–21, 33).
2:33–35. Jewish interpreters often linked texts using the same word or phrase (the principle was called gezerah shavah). Peter thus introduces Psalm 110:1, a clearly messianic passage that includes “right hand” and speaks of exaltation just as Psalm 16 does. (Those commentators who see a link with Moses here point out a Jewish tradition that Moses ascended to heaven to receive the law; but the text makes better sense as a simple exposition of the psalm in question.)
2:36. From Psalm 110:1 Peter shows that the resurrected one is the one whom David called “the Lord.” Thus he bears the name of “the Lord” that Joel mentioned (2:32; see comment on Acts 2:21).
2:40. Ancient historians edited and arranged speeches; they did not cite them verbatim (nor could anyone have done so unless the speech was short—rhetoricians sometimes continued for hours—and the speaker provided the author his prepared manuscript). Luke thus summarizes Peter’s point.
2:41. Considering Josephus’s estimate of six thousand Pharisees in all Palestine, three thousand conversions to the new Jesus movement in Jerusalem is no small start! The temple mount had many immersion pools that worshipers used to purify themselves ritually; mass baptisms could thus be conducted quickly.
