James 5:13 - Joseph Benson’s Commentary on the Old and New Testaments

Is any among you afflicted? let him pray That he may be supported under his affliction, so as to be enabled to bear it with patience and resignation to the divine will, and find it to be sanctified to him, and made the means, as of exercising, so also of increasing his grace, and of purifying him as gold and silver are purified in the furnace. Is any merry? Is any in health, and in a prosperous condition, and under no peculiar trial; let him sing psalms Let him give thanks to God, and express his thankfulness by singing psalms or hymns of praise. The purport of the verse is, that, as believers in Christ, we ought to employ ourselves in such private religious exercises as are suitable to our present circumstances and frame of mind. “When rendered cheerful by contemplating the manifestations which God hath made of his perfections in the works of creation, providence, and redemption, or by any blessing bestowed on ourselves, we are to express our joy, not by drinking, and singing profane, lewd songs, but by hymns of praise and thanksgivings offered to God for all his mercies, Ephesians 5:18-19. On the other hand, when afflicted, we are to pray; that being the best means of producing in ourselves patience and resignation. But as the precept concerning our singing psalms, when cheerful, does not imply that we are not to pray then; so the precept concerning prayer in affliction, does not imply that we are not to express our joy in suffering according to the will of God, by singing psalms or hymns, as Paul and Silas did in the jail at Philippi.” Macknight.