Revelation 7:1
After this I saw four angels standing at the four corners of the earth. They were holding back the four winds of the earth so that no wind would blow on the earth, on the ocean or on any tree.
Matthew 24:31
And He will send out His angels [i.e., as messengers] with the sound of a great trumpet [See I Thess. 4:16] to gather His elect [i.e., God's people] from all directions, [even] from throughout the whole world. [Note: See Mark 13:27, which suggests this thought by its use of 'earth' and 'sky']
Revelation 9:4
And they were told not to harm the grass on earth, or any greenery, or any tree, but only those people who did not have God's seal on their foreheads.
Revelation 9:14
It said to the sixth angel with the trumpet, "Release the four angels who are tied up at the great Euphrates River."
Matthew 8:26-27
And He called to them, "Why are you [so] afraid? You have such little faith!" Then He stood up and sternly commanded the wind and the waves, and they became very calm.
Mark 13:27
And He will send out His angels and gather His elect [i.e., God's people] from all directions, from the farthest part of the earth to the farthest part of the sky [i.e., from throughout the whole world].
Revelation 4:1-6
After [seeing all] these things, I looked, and there in heaven I saw [a vision of] an open door, and the voice I had first heard speaking to me like [the sound of] a trumpet [See 1:10], said, "Come up here [i.e., to heaven], and I will show you the things which must happen after these things [i.e., the things just revealed]."
Revelation 6:6
And I heard what sounded like a voice coming from among the four living beings, saying, "A quart [measure] of wheat sells for a day's pay [Note: This amount would be $60-$84 in 1994, based on one day of a farm laborer's wages. See Matt. 20:2]; three quart measures of barley sell for a day's pay; but do not damage the [olive] oil and wine [i.e., the orchards and vineyards].
Revelation 7:3
saying, "Do not harm the land, or the ocean, or the trees, until we have sealed the servants of our God [with a mark] on their foreheads."