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The Lord Jesus ... In flaming fire taking vengeance on them that know not God ... Who shall be punished with everlasting destruction. 1:7
"Be not soon shaken in mind ... by letter as from us."
What letter is being referred to here? Is it 1 Thessalonians? If so, then should Christians not read it to avoid being "skaken
in mind?" 2:2
If Paul wrote this letter (and many scholars think he didn't), then he is changing his mind (since writing 1 Thessalonians) about the timing of the Christ's return. The day of the Lord is no longer at hand. In fact it's nowhere near. Many things must happen first: there will be a great "falling away", a "man of sin" will be reveled, and Satan will show off his power by doing all kinds of signs and wonders. 2:2-9
Jesus will "consume" the wicked "with the spirit of his mouth." 2:8
Satan, not God, is all-powerful. 2:9