Passage
the grace of our Lord Jesus Christ <FI>is<Fi> with you all! Amen.
the grace of our Lord Jesus Christ <FI>is<Fi> with you all! Amen.
2 Thessalonians 3:16 and may the Lord of the peace Himself give to you the peace always in every way; the Lord <FI>is<Fi> with you all!
2 Thessalonians 3:17 The salutation by the hand of me, Paul, which is a sign in every letter; thus I write;
2 Thessalonians 3:18 the grace of our Lord Jesus Christ <FI>is<Fi> with you all! Amen.
The verse centers on "grace", "lord", "jesus", "christ", and "amen". It is saying that salvation is received as God's gift through faith, so boasting is pushed out by the wording itself.
The prior verse says "The salutation by the hand of me...", giving immediate footing for "grace" and "lord". In 2 Thessalonians context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "grace" and "lord" with trust shaped by these words, not by a vague optimism outside the passage.