written by Luke (a physician)* in Acts 1:6-11
Jesus Is Taken Up to Heaven
6 When the apostles met together with Jesus, they asked him, “Lord, will you at this time give the Kingdom back to Israel?”
7 Jesus said to them, “The times and occasions are set by my Father's own authority, and it is not for you to know when they will be. 8 But when the Holy Spirit comes upon you, you will be filled with power, and you will be witnesses for me in Jerusalem, in all of Judea and Samaria, and to the ends of the earth.” 9 After saying this, he was taken up to heaven as they watched him, and a cloud hid him from their sight.
10 They still had their eyes fixed on the sky as he went away, when two men dressed in white suddenly stood beside them 11 and said, “Galileans, why are you standing there looking up at the sky? This Jesus, who was taken from you into heaven, will come back in the same way that you saw him go to heaven.”