Acts 2 is the second chapter of the Acts of the Apostles in the New Testament of the Christian Bible. The book containing this chapter is anonymous but early Christian tradition affirmed that Luke composed this book as well as the Gospel of Luke. This chapter records the events on the day of Pentecost, about 10 days after the ascension of Jesus Christ. Text The original text was written in Koine Greek. This chapter is divided into 47 verses. Textual witnesses Some early manuscripts containing the text of this chapter are: Papyrus 91 (3rd century; extant verses 30–37; 46–47) Codex Vaticanus (325–350) Codex Sinaiticus (330–360) Codex Bezae (~400) Codex Alexandrinus (400–440) Codex Ephraemi Rescriptus (~450) Codex Laudianus (~550) Old Testament references Acts 2:16–21: Joel 2:28–32 : Psalm : Psalm : Psalm Coming of the Holy Spirit on the Day of Pentecost (2:1–43) The biblical narrative of Pentecost is given in the second chapter of the Book of Acts. Present were about one hundred and twenty followers of Christ (Acts 1:15), including the Twelve Apostles (i.e. the eleven disciples and Matthias who had replaced Judas Iscariot), Jesus' mother Mary, various other women disciples and Jesus' brothers (Acts 1:14). Their reception of the Holy Spirit in the Upper Room and their empowerment to speak in tongues are recounted in Acts 2:1–6: Verses 1–6 While those on whom the Spirit had descended were speaking in many languages, the Apostle Peter stood up with the eleven and proclaimed to the crowd that this event was the fulfillment of the prophecy of Joel (in Book of Joel 2:28–29): "…I will pour out my Spirit…". (Acts 2:17). Verse 15 "The third hour of the day" (about 9:00 AM): Peter explains that it is only breakfast time. Verses 16–21 The extended quotation from Joel 2:28–32 (LXX) is to support that this event is something predicted in Scripture, and it clarifies some points about the apostolic proclamation: The ecstatic speech is to be identified with the biblical gift of prophecy, as the work of the same Spirit of God. This is a phenomenon of 'the last days' (verse 17), but is a stage before the final 'day of the Lord' (verse 20). Verses 22–24 Peter then turns to the question, "Who was Jesus?", appealing to many people in the audience who had witnessed the miracles performed by Jesus, as a divine attestation of his ministry in the midst