The Book of Acts 1

⁴And being assembled together with them, He commanded them not to depart from Jerusalem, but to wait for the Promise of the Father, “which,” He said, “you have heard from Me; ⁵for John truly baptized with water, but you shall be baptized with the Holy Spirit not many days from now.” ⁶Therefore, when they had come together, they asked Him, saying, “Lord, will You at this time restore the kingdom to Israel?”

⁷Jesus 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. ⁸But 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.”

⁹And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight. ¹⁰And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel; ¹¹Which also said, Ye men of Galilee, why stand ye gazing up into heaven? this same Jesus, which is taken up from you into heaven, shall so come in like manner as ye have seen him go into heaven.