Revelation 4:1

AFTER these things I beheld, and, lo! a door was opened in heaven, and a voice, the first which I heard, as of a trumpet, speaking to me, said, Come up hither, and I will shew thee what things will be after these.

Revelation 1:10

I was [rapt] in spirit on the Lord's day, and heard behind me a great voice as of a trumpet,

Revelation 1:19

Write the things which thou seest, and the things which are, and the things which shall be in future after these,

Revelation 11:12

And they heard a great voice out of heaven, saying unto them, Ascend up hither. And they ascended into heaven in a cloud: and their enemies beheld them.

Revelation 22:6

And he said to me, These words are faithful and true. And the Lord God of the holy prophets hath sent his angel to shew to his servants the things which must shortly come to pass.

Matthew 3:16

And Jesus, after his baptism, came straight from the water: and lo! the heavens were opened for him, and he saw the Spirit of God descending as it were a dove, and coming upon him:

Mark 1:10

And immediately on going up from the water, he saw the heavens divided by a chasm, and the Spirit as a dove descending upon him:

Luke 3:21

Now it came to pass, at the time when John was baptising all the people, that Jesus also was baptised, and as he prayed, the heaven was opened,

Acts 7:56

and he said, Behold, I see the heavens opened, and the Son of man standing at the right hand of God.

Acts 10:11

And he saw heaven opened, and there descended to him a certain vessel, as a great sheet with chains at the four corners, and resting upon the earth:

Revelation 16:17

And the seventh angel poured out his vase into the air; and a loud voice come out from the temple of heaven, from the throne, saying, It is done.

John 16:13

But when he is come, the Spirit of truth, he will conduct you into all truth: for he shall not speak of himself; but whatsoever things he shall hear, he shall speak: and he will declare to you the things that shall come hereafter.

Revelation 1:1-3

THE revelation of Jesus Christ, which God gave to him, to shew to his servants the things which must shortly come to pass; and sending by his angel, he shewed them to his servant John:

Treasury of Scripture Knowledge

Summary

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.

Bible References

A door

Matthew 3:16
And Jesus, after his baptism, came straight from the water: and lo! the heavens were opened for him, and he saw the Spirit of God descending as it were a dove, and coming upon him:
Mark 1:10
And immediately on going up from the water, he saw the heavens divided by a chasm, and the Spirit as a dove descending upon him:
Luke 3:21
Now it came to pass, at the time when John was baptising all the people, that Jesus also was baptised, and as he prayed, the heaven was opened,
Acts 7:56
and he said, Behold, I see the heavens opened, and the Son of man standing at the right hand of God.
Acts 10:11
And he saw heaven opened, and there descended to him a certain vessel, as a great sheet with chains at the four corners, and resting upon the earth:

The first

Revelation 1:10
I was [rapt] in spirit on the Lord's day, and heard behind me a great voice as of a trumpet,
Revelation 16:17
And the seventh angel poured out his vase into the air; and a loud voice come out from the temple of heaven, from the throne, saying, It is done.

And i

Revelation 1:19
Write the things which thou seest, and the things which are, and the things which shall be in future after these,
Revelation 22:6
And he said to me, These words are faithful and true. And the Lord God of the holy prophets hath sent his angel to shew to his servants the things which must shortly come to pass.
John 16:13
But when he is come, the Spirit of truth, he will conduct you into all truth: for he shall not speak of himself; but whatsoever things he shall hear, he shall speak: and he will declare to you the things that shall come hereafter.