REV 4:1

1 After these things I saw, and lo! a door was opened in heaven. And the first voice that I heard, was as of a trump speaking with me, and said, Ascend thou up hither, and I shall show to thee which things it behooveth to be done soon after these things. (After these things I saw, and behold! a door was opened in heaven. And the voice like a trumpet, that I had heard before, (was) speaking to me, and it said, Come up here, and I shall show thee what it behooveth to be done next.)