In Acts 1:6, some disciples wonder if Jesus was now going to “restore the kingdom to Israel.” This question is reminiscent of the Olivet Discourse in Luke 21:5-37, where the disciples ask about the coming judgment on the Temple. When they asked “when will this happen” in Luke 21, Jesus’ answer implied that it would happen very soon, within a generation (Luke 21:32).
What prompts the question is Jesus’ command to remain in Jerusalem until they are baptized with the Holy Spirit “not many days from now.” As Keener observes, talk of the Spirit’s outpouring was de facto eschatological in character” (Acts, 1:682). Many texts from the Hebrew Bible indicate that the eschatological age would be characterized by the Spirit of God on all his people (Joel 2:28-31, which Peter quotes in the next chapter, but also Isa 42:1, 44:3, 59:21). If the Spirit is coming, then the time of the restoration of the Kingdom to Israel must be soon.
After the resurrection of Jesus, it was only natural for the disciples to think that Jesus would now enter the Temple in the power and glory of his resurrection and begin to reform the religion of Israel and begin the process of evangelizing the nations. This was a clear expectation of the Messiah’s activity. Beginning with the people of God, Messiah would either convert the enemies of Israel or destroy them. On a historical level, the question the disciples ask resonates with many other Jews living in the mid 30’s A.D.
The verb translated “restore” here (ἀποκαθίστημι) is a key eschatological term. It appears in Mal 4:6 (LXX 3:23) and LXX Daniel 4:26, and it anticipates Acts 3:21 where the word appears in an eschatological context. The hope of Israel was that the kingdom would be restored to them as the prophets had predicted (Isa 2:2, 49:6; Jer 16:15; 31:27-34). In fact, Luke began his first book with the hope of the coming Messiah in the Song of Zechariah (Luke 1:69-74) as well as the words of Simeon in the Temple (Luke 2:24-32).
The disciples expect Jesus to tell them that he is in fact about to restore the Kingdom and take his father David’s throne in Jerusalem. Much like the crowds in Luke 19:11, the disciples expect the Kingdom of God, as described by the prophets, to arrive at that moment.
Yet it is no surprise when Jesus reminds them it is not for them to known when the kingdom will be restored. The idea of an interim period between the present and the coming kingdom is well known in Second Temple Period Judaism. For example in 4 Ezra 4:33-37 the prophet asks “How long and when will these things be? Why are our years few and evil?” The answer in this late first century text is that “the time of threshing is delayed for the righteous—on account of the sins of those who dwell on earth.” The interim is to be used wisely. The new age will certainly dawn, but in the meantime the righteous will continue to labor. Many of Jesus’ parables have a similar theme (the Ten Virgins in Matt 25:1-14, for example).
As for the disciples, they are called to be witnesses to the good news of Jesus in Jerusalem, Judea, Samaria, and all the earth. To some extent, the kingdom is about to begin in the Temple in a manner which is not unlike what many expected. That the kingdom would be given to a group of Galileans rather than a faction within Judaism (Pharisees, Essenes, etc.) was not expected at all. These men are quite literally the most unlikely group of people to be commissioned with the task of announcing the Messiah to Israel and then the rest of the world!