26 Seem to be religious. He now reproves even in those who boasted that they were doers of the law, a vice under which hypocrites commonly labor, that is, the wantonness of the tongue in detraction. He has before touched on the duty of restraining the tongue, but for a different end; for he then bade silence before God, that we might be more fitted to learn. He speaks now of another thing, that the faithful should not employ their tongue in evil speaking.
It was indeed needful that this vice should be condemned, when the subject was the keeping of the law; for they who have put off the grosser vices, are especially subject to this disease. He who is neither an adulterer, nor a thief, nor a drunkard, but, on the contrary, seems brilliant with some outward shew of sanctity will set himself off by defaming others, and this under the pretense of zeal, but really through the lust of slandering.
The object here, then, was to distinguish between the true worshippers of God and hypocrites, who are so swollen with Pharisaic pride, that they seek praise from the defects of others. If any one, he says, seems to be religious, that is, who has a show of sanctity, and the meantime flatters himself by speaking evil of others, it is hence evident that he does not truly serve God. For by saying that his religion is vain, he not only intimates that other virtues are marred by the stain of evil-speaking, but that the conclusion is, that the zeal for religion which appears is not sincere.
But deceiveth his own heart. I do not approve of the version of Erasmus — “But suffers his heart to err;” for he points out the fountain of that arrogance to which hypocrites are addicted, through which, being blinded by an immoderate love of themselves, they believe themselves to be far better than they really are; and hence, no doubt, is the disease of slandering, because the wallet, as Aesop says in his Apologue, hanging behind, is not seen. Rightly, then, has James, wishing to remove the effect, that is, the lust of evil-speaking, added the cause, even that hypocrites flatter themselves immoderately. For they would be ready to forgive were they in their turn to acknowledge themselves to be in need of forgiveness. Hence the flatteries by which they deceive themselves as to their own vices, make them such supercilious censors of others.