After this I looked, and, behold, a door was opened in heaven…
1. After the first vision, John gets a second, which shows that God continues and multiplies His favours on the godly, who make a good use thereof, and are desirous of more.
2. He looked, and was not disappointed; neither shall any be who looks up to God for grace, or growth of heavenly knowledge.
3. He could not see till a door was open to him; neither will we ever see heavenly mysteries till the Lord opens the door of our mind and heart (Luke 24:45; Acts 16:14).
4. This and the other visions were seen in heaven; which shows that all that falls out on earth is first decreed in heaven, and the future to us is ever present to God.
5. The first voice that talked with John was as a trumpet; and so is the trumpet of the law the first voice that talks with a sinner for his conversion (Isaiah 58:1).
6. John is bidden come up thither; to show that the knowledge of heavenly things requires a heavenly and elevated mind.
7. This also shows that we should have God's warrant for all our doings, and be bidden do what we do.
8. God only is able to foretell all future things, because He is omniscient, and determines the event thereof, which is a great comfort to His own elect; therefore it is said here, "I will show thee," etc.
9. This also is for their warning, that trials and troubles must be; and also for the comfort, that their delivery must be, and shall be in like manner.
(Wm. Guild, D. D.)
Parallel VersesKJV: 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.
WEB: 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."