Revelation 4:1

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."

Revelation 1:10

I was in the Spirit on the Lord's day, and I heard behind me a loud voice, like a trumpet

Revelation 1:19

Write therefore the things which you have seen, and the things which are, and the things which will happen hereafter;

Revelation 11:12

I heard a loud voice from heaven saying to them, "Come up here." They went up into heaven in the cloud, and their enemies saw them.

Revelation 22:6

He said to me, "These words are faithful and true. The Lord God of the spirits of the prophets sent his angel to show to his bondservants the things which must happen soon."

Matthew 3:16

And Jesus, when he was baptized, went up directly from the water: and suddenly the heavens were opened to him, and he saw the Spirit of God descending as a dove, and coming on him.

Mark 1:10

Immediately coming up from the water, he saw the heavens parting, and the Spirit descending on him like a dove.

Luke 3:21

Now it happened, when all the people were baptized, Jesus also had been baptized, and was praying. The sky was opened,

Acts 7:56

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

Acts 10:11

He saw heaven opened and a certain container descending to him, like a great sheet let down by four corners on the earth,

Revelation 16:17

The seventh poured out his bowl into the air. A loud voice came forth out of the temple, from the throne, saying, "It is done."

Exodus 1:1

Now these are the names of the children of Israel, who came into Egypt (every man and his household came with Jacob):

Exodus 19:24

The LORD said to him, "Go down and you shall bring Aaron up with you, but do not let the priests and the people break through to come up to the LORD, lest he break forth on them."

Exodus 24:12

The LORD said to Moses, "Come up to me on the mountain, and stay here, and I will give you the tables of stone with the law and the commands that I have written, that you may teach them."

Exodus 34:2-3

Be ready by the morning, and come up in the morning to Mount Sinai, and present yourself there to me on the top of the mountain.

John 16:13

However when he, the Spirit of truth, has come, he will guide you into all truth, for he will not speak on his own; but whatever he hears he will speak, and he will declare to you things that are coming.

Revelation 1:1-3

This is the Revelation of Jesus Christ, which God gave him to show to his servants the things which must happen soon, which he sent and made known 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

Exodus 1:1
Now these are the names of the children of Israel, who came into Egypt (every man and his household came with Jacob):
Matthew 3:16
And Jesus, when he was baptized, went up directly from the water: and suddenly the heavens were opened to him, and he saw the Spirit of God descending as a dove, and coming on him.
Mark 1:10
Immediately coming up from the water, he saw the heavens parting, and the Spirit descending on him like a dove.
Luke 3:21
Now it happened, when all the people were baptized, Jesus also had been baptized, and was praying. The sky was opened,
Acts 7:56
and said, "Behold, I see the heavens opened, and the Son of Man standing at the right hand of God."
Acts 10:11
He saw heaven opened and a certain container descending to him, like a great sheet let down by four corners on the earth,

The first

Revelation 1:10
I was in the Spirit on the Lord's day, and I heard behind me a loud voice, like a trumpet
Revelation 16:17
The seventh poured out his bowl into the air. A loud voice came forth out of the temple, from the throne, saying, "It is done."

And i

Revelation 1:19
Write therefore the things which you have seen, and the things which are, and the things which will happen hereafter;
Revelation 22:6
He said to me, "These words are faithful and true. The Lord God of the spirits of the prophets sent his angel to show to his bondservants the things which must happen soon."
John 16:13
However when he, the Spirit of truth, has come, he will guide you into all truth, for he will not speak on his own; but whatever he hears he will speak, and he will declare to you things that are coming.