The Ascension, the Promise, and the Choosing of Matthias

The opening of Acts does not begin with a slow scene. It begins with a summary: the former treatise, the Gospel of Luke, covered what Jesus began to do and teach until the day He was taken up. That taking up is the hinge of the chapter. Everything else—the promise, the question, the waiting, the replacement of Judas—hangs from it.

Luke writes to Theophilus again, and he makes clear that after His suffering, Jesus presented Himself alive with many proofs. For forty days He appeared to the apostles, speaking about the kingdom of God. That is the content of those weeks: not private visions, not new laws, but sustained, public demonstration that He was alive, and sustained teaching about the kingdom.

Then He gave a command. They were not to leave Jerusalem. They were to wait for the promise of the Father, which He had already told them about. John baptized with water, He said, but they would be baptized with the Holy Spirit not many days from now. That is the promise: not a vague blessing, but a specific immersion in the Spirit, with a timeline attached.

The disciples asked a question that sounds natural given everything they had seen: “Lord, are You at this time restoring the kingdom to Israel?” They had watched Him conquer death. They had heard Him teach about the kingdom. The logical next step, in their minds, was the political restoration of Israel. Jesus did not rebuke them for asking, but He redirected them. The times and seasons belong to the Father’s authority, not to their curiosity.

Instead of a timeline, He gave them a mission. They would receive power when the Holy Spirit came upon them, and they would be His witnesses—in Jerusalem, in all Judea and Samaria, and to the end of the earth. That is the structure of the entire book of Acts: the outward movement from the city to the nations, powered by the Spirit.

Then, as they watched, He was lifted up. A cloud took Him out of their sight. They stood staring into the sky, and two men in white appeared. They asked why the men of Galilee were standing there looking up. This same Jesus, they said, who was taken from you into heaven, will come back in the same way you saw Him go. The ascension was not a disappearance. It was a departure with a promised return.

They returned to Jerusalem from the Mount of Olives, a Sabbath day’s journey away. They went to the upper room where they were staying. The names are listed: Peter, John, James, Andrew, Philip, Thomas, Bartholomew, Matthew, James the son of Alphaeus, Simon the Zealot, and Judas the son of James. These eleven, along with the women, Mary the mother of Jesus, and His brothers, were united in constant prayer.

During those days, Peter stood up among the believers—about a hundred and twenty of them—and spoke. He said the Scripture had to be fulfilled, the one the Holy Spirit spoke through David about Judas. Judas had been their guide to those who arrested Jesus. He had been numbered among them and had received a share in the ministry. But he bought a field with the reward of his wickedness, fell headlong, burst open, and all his intestines spilled out. Everyone in Jerusalem knew about it, and they called that field Akeldama, the Field of Blood.

Peter quoted the Psalms: “Let his habitation be made desolate, and let no one dwell in it,” and “Let another take his office.” So they needed to choose a replacement. The qualification was strict: someone who had accompanied them the whole time the Lord Jesus went in and out among them, from the baptism of John until the day He was taken up. That person would become a witness of His resurrection alongside the eleven.

They put forward two men: Joseph called Barsabbas, also known as Justus, and Matthias. Then they prayed. They asked the Lord, who knows the hearts of all, to show which of the two He had chosen to take the place in this ministry and apostleship from which Judas had fallen away. Then they cast lots, and the lot fell to Matthias. He was added to the eleven apostles.

The chapter closes with the number restored to twelve. The waiting had begun. The promise of the Spirit had not yet come, but the community was in place, the prayer was constant, and the witness was ready to begin.