2 Thessalonians 2:2

to the end that ye be not quickly shaken from your mind, nor yet be troubled, either by spirit, or by word, or by epistle as from us, as that the day of the Lord is just at hand;

This is Paul's denial that he ever taught that the judgment day was "at hand" in his lifetime. True, some of the Thessalonians had mistakenly understood it that way, but it was their fault by doing so, not Paul's; and in the same manner, the exegetes of our own times who are always prattling about Christ and the apostles being mistaken in their assumption that the Second Advent was soon to arrive have mistakenly read the New Testament, and it is their fault, not the fault of the New Testament. In fact, Satan may have had a strong hand in fostering the misunderstanding. Hendriksen said:

In view of 2 Thessalonians 3:17, the idea that someone had even sent a forged letter (a letter purporting to be from Paul) - though open to certain objections - cannot be lightly dismissed.[2]

Shaken from your mind ... This means "thrown off the course of sound reasoning and thinking."[3]

It is clear enough from this verse that Paul denied having anything whatever to do with creating the false notion in the heads of the some of the Thessalonians that they might expect the coming of the Lord at once!

[2] William Hendriksen, A New Testament Commentary, Epistles to the Thessalonians (Grand Rapids, Michigan: Baker Book House, 1955), p. 168.

[3] David A. Hubbard, Wycliffe New Testament Commentary (Chicago: Moody Press, 1971), p. 832.