Acts 1:1-3

To Theophilus, the lover of God. I write to you again, my dear friend, to give you further details about the life of our Lord Jesus and all the things that he did and taught. Just before he ascended into heaven, Jesus left instructions through the Holy Spirit for the apostles he had chosen. After the sufferings of his cross, Jesus appeared alive many times to these same apostles over a forty-day period, proving to them with many convincing signs that he had been resurrected. During these encounters, he taught them the truths of God’s kingdom.