Passage
that ye be not quickly shaken in mind, nor be troubled, neither through spirit, neither through word, neither through letters as through us, as that the day of Christ hath arrived;
that ye be not quickly shaken in mind, nor be troubled, neither through spirit, neither through word, neither through letters as through us, as that the day of Christ hath arrived;
2 Thessalonians 2:1 And we ask you, brethren, in regard to the presence of our Lord Jesus Christ, and of our gathering together unto him,
2 Thessalonians 2:2 that ye be not quickly shaken in mind, nor be troubled, neither through spirit, neither through word, neither through letters as through us, as that the day of Christ hath arrived;
2 Thessalonians 2:3 let not any one deceive you in any manner, because--if the falling away may not come first, and the man of sin be revealed--the son of the destruction,
2 Thessalonians 2:4 who is opposing and is raising himself up above all called God or worshipped, so that he in the sanctuary of God as God hath sat down, shewing himself off that he is God--<FI> the day doth not come<Fi> .
The verse centers on "Spirit", "quickly", "shaken", "mind", "troubled", "neither", and "through". It is saying that the verse draws attention to "Spirit" and "quickly", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 1's "And we ask you brethren in regard..." into verse 3's "let not any one deceive you in...", so "Spirit" and "quickly" belong inside that flow. In 2 Thessalonians context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "Spirit" and "quickly" with trust shaped by these words, not by a vague optimism outside the passage.