The Apostle Paul
2 Thessalonians 3:3BSB·traditional attribution

But the Lord is faithful, and He will strengthen you and guard you from the evil one.

John Calvin Reformed

3 But God is faithful. As it was possible that their minds, influenced by unfavorable reports, might come to entertain some doubts as to Paul’s ministry, having taught them that faith is not always found in men, he now calls them back to God, and says that he is faithful, so as to confirm them against all contrivances of men, by which they will endeavor to shake them.

Matthew Henry Presbyterian

In these words observe, I. The apostle desires the prayers of his friends: Finally, brethren, pray for us, Th2 3:1. He always remembered them in his prayers, and would not have them forget him and his fellow-labourers, but bear them on their hearts at the throne of grace. Note, 1.

Commenting on 2 Thessalonians 3:1-5

John Gill Reformed Baptist

But the Lord is faithful,.... Or "God" as the Vulgate Latin and Ethiopic versions read, as do also the Alexandrian and Claromontane copies. This is said for the comfort of the saints, lest they should be discouraged upon hearing that all professors of faith in Christ had it not, who might be ready to take it to themselves, and fear, that either they had it...