https://barrysetterfield.org/Signs/Signs.html
"First: Joel 2:30-31 states, "
And I will show wonders in the heavens, and in the earth blood and fire and pillars of smoke. And the sun shall be turned to darkness and the moon to blood before the great and terrible Day of the Lord comes.” The great & terrible Day of the Lord is also known as the “Great Tribulation” in the New Testament. This is a period of 7 years just prior Christ’s Millennial reign.
Pillars of smoke? The Hebrew word translated "pillars" is "timmorah." It is used 21 times in the Old Testament. Only twice is the word translated as "pillars." The other 19 times it is translated as "palm tree." So there is to be "blood and fire and palm-trees of smoke." That is a very accurate picturing of the hydrogen bomb. The atomic bomb (on the right, below) is referred to as a mushroom cloud, not a pillar. But look at the hydrogen bomb, on the left below."
Nahum 2:3-4 reads:“
Chariots of flashing steel will rage in the streets. They will jostle one against another in the broad roads; they will run like the lightning; they will move with blazing torches… In the day of His preparation to Come.”
How else could cars and trucks have been described at that time?
In the middle of describing the Lord’s Return, the prophet Isaiah (60:8) stops and asks:
“Who are these that fly like a cloud, and as the doves to their windows?”
Fourth: Prophecies in Amos 9:2 and Obadiah 4 may imply space-craft just prior to the Tribulation.
Amos 9:2 --
"Though you climb up to the heavens, from there I will bring you down … says the Lord God, who touches the earth and it melts (in the Tribulation).
"
Obadiah 4 --
"Though you exalt yourself and … set your nest among the stars, from there I will bring you down (in the Tribulation),
says the LORD."