Acts 1 marks the formal commencement of the "last days" of the Old Covenant age. Having secured the legal basis for the New Creation through His death and resurrection, Jesus spends a symbolic forty-day period establishing the apostolic authority that will oversee the transition from the Temple-based system to the Spirit-led Kingdom. This chapter is the high-priestly bridge, showing Christ ascending to the heavenly throne to begin His intercessory reign, while His representatives are commissioned to reclaim the remnant of Israel before the impending judgment of AD 70.
1 The first book I wrote, Theophilus, concerned all that Jesus began both to do and to teach, 2 until the day in which he was received up, after he had given commandment through the Holy Spirit to the apostles whom he had chosen. 3 To these he also showed himself alive after he suffered, by many proofs, appearing to them over a period of forty days and speaking about God’s Kingdom. 4 Being assembled together with them, he commanded them, “Don’t depart from Jerusalem, but wait for the promise of the Father, which you heard from me. 5 For John indeed baptized in water, but you will be baptized in the Holy Spirit not many days from now.”
6 Therefore when they had come together, they asked him, “Lord, are you now restoring the kingdom to Israel?”
7 He said to them, “It isn’t for you to know times or seasons which the Father has set within his own authority. 8 But you will receive power when the Holy Spirit has come upon you. You will be witnesses to me in Jerusalem, in all Judea and Samaria, and to the uttermost parts of the earth.”
9 When he had said these things, as they were looking, he was taken up, and a cloud received him out of their sight. 10 While they were looking steadfastly into the sky as he went, behold, two men stood by them in white clothing, 11 who also said, “You men of Galilee, why do you stand looking into the sky? This Jesus, who was received up from you into the sky, will come back in the same way as you saw him going into the sky.”
12 Then they returned to Jerusalem from the mountain called Olivet, which is near Jerusalem, a Sabbath day’s journey away. 13 When they had come in, they went up into the upper room where they were staying; that is Peter, John, James, Andrew, Philip, Thomas, Bartholomew, Matthew, James the son of Alphaeus, Simon the Zealot, and Judas the son of James. 14 These all with one accord continued steadfastly in prayer and supplication, along with the women, and Mary the mother of Jesus, and with his brothers.
15 In these days, Peter stood up in the middle of the disciples (and the number of names was about one hundred twenty), and said, 16 “Brothers, it was necessary that this Scripture should be fulfilled, which the Holy Spirit spoke before by the mouth of David concerning Judas, who was guide to those who took Jesus. 17 For he was counted with us, and received his portion in this ministry. 18 Now this man obtained a field with the reward for his wickedness, and falling headlong, his body burst open, and all his intestines gushed out. 19 It became known to everyone who lived in Jerusalem that in their language that field was called ‘Akeldama,’ that is, ‘The field of blood.’ 20 For it is written in the book of Psalms, ‘Let his habitation be made desolate. Let no one dwell in it;’ and, ‘Let another take his office.’
21 “Of the men therefore who have accompanied us all the time that the Lord Jesus went in and out among us, 22 beginning from the baptism of John to the day that he was received up from us, of these one must become a witness with us of his resurrection.”
23 They put forward two, Joseph called Barsabbas, who was surnamed Justus, and Matthias. 24 They prayed and said, “You, Lord, who know the hearts of all men, show which one of these two you have chosen 25 to take part in this ministry and apostleship from which Judas fell away, that he might go to his own place.” 26 They drew lots for them, and the lot fell on Matthias, and he was counted with the eleven apostles.
Source: ebible.org
In biblical history, forty is the number of transition, testing, and revelation. Just as Moses spent forty days on Mount Sinai to receive the Law for the Old Covenant, Jesus spends forty days with the apostles to reveal the "laws" of the New Covenant Kingdom. This period was essential for the "many proofs" of His victory over death, ensuring that the apostolic foundation was unshakable. In the context of fulfilled eschatology, this brief forty-day window mirrors the longer forty-year generation (AD 30–70) that would follow—a final period of grace before the Old Covenant world was officially dissolved.
The commission given by Jesus in verse 8 provides the strategic map for the covenant transition. The Gospel must go to Jerusalem first, then Judea and Samaria, and finally the "uttermost parts of the earth" (the Roman Oikoumene). This is not just a mission strategy; it is a legal requirement. The New Covenant had to be offered to the totality of the Jewish world before the "end" could come. By the time Paul writes Colossians (Col. 1:23), he testifies that the Gospel had indeed been preached to "every creature under heaven," fulfilling the scope of this commission within the first century.
When the cloud received Jesus, the disciples were witnessing the Great High Priest entering the heavenly Holy of Holies. On the Day of Atonement, the high priest would disappear from view behind the veil into the cloud of incense. Christ’s ascension was the antitype of this act; He entered the presence of the Father to present His blood once for all. This was the moment of His formal enthronement (Daniel 7:13-14), where He received the "kingdom, glory, and dominion" that the apostles were now tasked with announcing to the nations.
The angelic promise that Jesus would return in the "same way" is frequently misunderstood. The High Priest's departure was followed by a period of waiting while he made intercession behind the veil. The Jewish people waited for him to *emerge* from the sanctuary to declare the atonement finished. In the same way, the first-century church waited for Christ to emerge in power (His Parousia) to finalize the destruction of the Old Covenant system. This return was completed in AD 70, signaling that the sacrifice had been accepted and the New Covenant was now the only valid reality.
Peter’s use of the Psalms to address the vacancy left by Judas is highly significant for fulfilled eschatology. He quotes Psalm 69 and 109, which are imprecatory psalms regarding those who reject the King. By applying the phrase "let his habitation be made desolate" to Judas, Peter is subtly identifying Judas with the unbelieving generation of Jerusalem. Just as Judas’s place was made desolate, so too would the Temple and the Old Covenant administration be made desolate. The replacement of Judas ensured the "Twelve" remained a complete judicial body to judge the twelve tribes during the transition.
The requirement for the new apostle to have been a witness from the "baptism of John" until the "ascension" emphasizes the historical and chronological bounds of the covenant shift. The apostles were not theologians of a new philosophy; they were legal witnesses of a historical transition. The casting of lots was the final Old Covenant method of seeking God's will, used one last time to secure the leadership of the New Israel. Once Pentecost arrived, the lot was replaced by the direct leading of the Spirit, signaling that the New Creation had fully dawned.
The ascension of Jesus Christ into the glory cloud confirms that He is the King currently reigning over all things. We no longer look for an earthly kingdom or a physical temple because the High Priest has already entered the heavenly sanctuary and successfully finished His work. Our identity is as citizens of a Kingdom that cannot be shaken, led by the Spirit that was promised and poured out. The "power from on high" given in Acts 1 is our present inheritance, enabling us to live as the permanent administration of the New Creation here and now.
If the restoration of the Kingdom has already been accomplished through Christ's enthronement and the Spirit's arrival, how should that reality change your confidence in God's current reign over your life?