Revelation 4:1

After this I saw, and behold a door opened in heaven, and the first voice which I had heard, as of a trumpet talking with me, said, Come up hither, and I will shew thee things which must be hereafter.

Revelation 1:10

I was in the Spirit on the Lord's day,

Revelation 1:19

Write the things which thou hast seen, and which are, and which shall be hereafter:

Revelation 11:12

And I heard a great voice saying from heaven to them, Come up hither. And they went up to heaven in a cloud, and their enemies beheld them.

Revelation 22:6

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

Matthew 3:16

And Jesus being baptized, went up straightway from the water, and lo the heavens were opened to him, and he saw the Spirit of God descending like a dove, and coming upon him.

Mark 1:10

And coming up from the water, straitway he saw the heavens opened, and the Spirit like a dove descending upon him.

Luke 3:21

Now while all the people were baptizing, it came to pass, that Jesus also being baptized,

Acts 7:56

And said, Behold, I see the heavens opened, and the Son of man standing on the right-hand of God.

Acts 10:11

And saw heaven opened, and a certain vessel like a great sheet, tied at the four corners, descending to him, and let down on the earth:

Revelation 16:17

And the seventh poured out his phial upon the air, and there went forth a loud voice out of the temple from the throne, saying, It is done.

John 16:13

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

Revelation 1:1-3

The Revelation of Jesus Christ, which God gave unto him, to shew his servants the things which must shortly come to pass: and he sent and signified them by his angel 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 being baptized, went up straightway from the water, and lo the heavens were opened to him, and he saw the Spirit of God descending like a dove, and coming upon him.
Mark 1:10
And coming up from the water, straitway he saw the heavens opened, and the Spirit like a dove descending upon him.
Luke 3:21
Now while all the people were baptizing, it came to pass, that Jesus also being baptized,
Acts 7:56
And said, Behold, I see the heavens opened, and the Son of man standing on the right-hand of God.
Acts 10:11
And saw heaven opened, and a certain vessel like a great sheet, tied at the four corners, descending to him, and let down on the earth:

The first

Revelation 1:10
I was in the Spirit on the Lord's day,
Revelation 16:17
And the seventh poured out his phial upon the air, and there went forth a loud voice out of the temple from the throne, saying, It is done.

And i

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