Passage
If any man obey not this our saying in this letter, note him, and haue no company with him, that he may be ashamed:
If any man obey not this our saying in this letter, note him, and haue no company with him, that he may be ashamed:
2 Thessalonians 3:12 Therefore them that are such, we warne and exhort by our Lord Iesus Christ, that they worke with quietnes, and eate their owne bread.
2 Thessalonians 3:13 And ye, brethren, be not weary in well doing.
2 Thessalonians 3:14 If any man obey not this our saying in this letter, note him, and haue no company with him, that he may be ashamed:
2 Thessalonians 3:15 Yet count him not as an enemie, but admonish him as a brother.
2 Thessalonians 3:16 Now the Lord himselfe of peace giue you peace alwayes by all meanes. The Lord be with you all.
The verse centers on "obey", "saying", "letter", "note", "haue", "company", and "ashamed". It is saying that the verse draws attention to "obey" and "saying", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "And ye brethren be not weary in..." into verse 15's "Yet count him not as an enemie...", so "obey" and "saying" 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 "obey" and "saying" with trust shaped by these words, not by a vague optimism outside the passage.