Theophylact of Ohrid

Note: the apostle did not say in the indicative mood: "patience has a perfect work," but in the imperative: "let it have," for he is not announcing an already completed virtue, but commanding one that must now be practiced. He names wisdom as the cause of perfect work, for he knows that the proving of faith and patience in trials is not the lot of all people, but of those who are wise concerning God, which is why he stirs up those who wish to show faith and patience to pray for wisdom.

Commentary on James ↗