Acts 1:7-9

Young's Literal Translation

⁷ and he said unto them, `It is not yours to know times or seasons that the Father did appoint in His own authority;

⁸ but ye shall receive power at the coming of the Holy Spirit upon you, and ye shall be witnesses to me both in Jerusalem, and in all Judea, and Samaria, and unto the end of the earth.'

⁹ And these things having said -- they beholding -- he was taken up, and a cloud did receive him up from their sight;