Revelation 4:1 in the King James Version
After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.
Context
1 After these things I looked and saw a door opened in heaven; and the first voice that I heard, like a trumpet speaking with me, was one saying, “Come up here, and I will show you the things which must happen after this.”
2 Immediately I was in the Spirit. Behold, there was a throne set in heaven, and one sitting on the throne