Passage
the grace of our Lord Jesus Christ <FI>is<Fi> with you! Amen.
the grace of our Lord Jesus Christ <FI>is<Fi> with you! Amen.
1 Thessalonians 5:26 salute all the brethren in an holy kiss;
1 Thessalonians 5:27 I charge you <FI>by<Fi> the Lord, that the letter be read to all the holy brethren;
1 Thessalonians 5:28 the grace of our Lord Jesus Christ <FI>is<Fi> with you! 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 "I charge you FI by Fi the...", giving immediate footing for "grace" and "lord". In 1 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.