He appeared to them over a period of forty days and spoke about the kingdom of God. ACTS 1:3
You ever think about what Jesus said to Pilate when he asked the Lord if He was a king?
He said, “My kingdom is not of this world”. He didn’t deny He was a king, He knew Pilate could never comprehend His answer. It was as if He said, “I am a king, just not that kind of king”. You see in Pilate’s mind a king was about palaces, armies, prestige, wealth, and political power. Jesus was speaking of the unseen kingdom, the kingdom of God. His kingdom was about men’s hearts and souls. He even told Nicodemus that you can’t see His kingdom unless you are born again. When someone is truly born again, they are transferred from the kingdom of darkness into the kingdom of God’s only Son. Here are some thoughts from Andrew Murray on the kingdom of God.
“The teaching of Jesus during the forty days after the resurrection dealt primarily with the kingdom of God. It is remarkable that Luke, in the last verses of Acts, sums up the teaching of Paul at Rome in the same words: “He explained and declared to them the kingdom of God” (Acts 28:23) and “He preached the kingdom of God” (Acts 28:31). Christ had entrusted to His disciples the announcement of the coming of the kingdom—a kingdom of righteousness and peace and joy. The rule of God in heaven came down in the power of the Spirit, and the disciples were full of the one thought—to preach the coming of the Spirit into the hearts of men. The good news was that the kingdom of God was ruling and dwelling within men, even as in heaven. In the last command our Lord gave to His disciples (see Acts 1:4–8), we will find the great truths of the gospel:”
The kingdom of God was the message of Jesus and the early church. They all knew about earthly kings and kingdoms, in Christ they had found something far greater. In Him there was a greater purpose, a greater power, and a sustaining joy. Just as Jesus testified the good confession before Pilate and tasted death because of the joy set before Him, we can live in this world even though we are not of this world. We are citizens of another kingdom, and because we have tasted the glory of it, this kingdom on earth has lost its attraction to us; it just doesn’t do it for us anymore.