For in many things we offend all. This may be taken as having been said by way of concession, as though he had said, "Be it that thou findest what is blamable in thy brethren, for no one is free from sins; but dost thou think that thou art perfect who usest a slanderous and virulent tongue?" But James seems to me to exhort us by this argument to meekness, since we are ourselves also surrounded with many infirmities; for he acts unjustly who denies to others the pardon he needs himself. So also Paul says, when he bids the fallen to be reproved kindly, and in the spirit of meekness; for he immediately adds, "considering thyself, lest thou also be tempted." (Galatians 6:1.) For there is nothing which serves more to moderate extreme rigor than the knowledge of our own infirmity. If any man offend not in word. After having said that there is no one who does not sin in many things, he now shews that the disease of evil-speaking is more odious than other sins; for by saying that he who offends not with his tongue is perfect, he intimates that the restraining of the tongue is a great virtue, and one of the chief virtues. Hence they act most perversely who curiously examine every fault, even the least, and yet so grossly indulge themselves. He then indirectly touches here on the hypocrisy of censors, because in examining themselves they omitted the chief thing, and that was of great moment even their evil-speaking; for they who reproved others pretended a zeal for perfect holiness, but they ought to have begun with the tongue, if they wished to be perfect. As they made no account of bridling the tongue, but, on the contrary, did bite and tear others, they exhibited only a fictitious sanctity. It is hence evident that they were the most reprehensible of all, because they neglected a primary virtue. This connection renders the meaning of the Apostle plain to us.

For in many things we offend all - We all offend. The word here rendered offend, means to stumble, to fall; then to err, to fail in duty; and the meaning here is, that all were liable to commit error, and that this consideration should induce men to be cautious in seeking an office where an error would be likely to do so much injury. The particular thing, doubtless, which the apostle had in his eye, was the peculiar liability to commit error, or to do wrong with the tongue. Of course, this liability is very great in an office where the very business is public speaking. If anywhere the improper use of the tongue will do mischief, it is in the office of a religious teacher; and to show the danger of this, and the importance of caution in seeking that office, the apostle proceeds to show what mischief the tongue is capable of effecting.
If any man offend not in word - In his speech; in the use of his tongue.
The same is a perfect man - Perfect in the sense in which the apostle immediately explains himself; that he is able to keep every other member of his body in subjection. His object is not to represent the man as absolutely spotless in every sense, and as wholly free from sin, for he had himself just said that "all offend in many things;" but the design is to show that if a man can control his tongue, he has complete dominion over himself, as much as a man has over a horse by the bit, or as a steersman has over a ship if he has hold of the rudder. He is perfect in that sense, that he has complete control over himself, and will not be liable to error in anything. The design is to show the important position which the tongue occupies, as governing the whole man. On the meaning of the word perfect, see the notes at Job 1:1.
And able also to bridle the whole body - To control his whole body, that is, every other part of himself, as a man does a horse by the bridle. The word rendered "to bridle," means to lead or guide with a bit; then to rein in, to check, to moderate, to restrain. A man always has complete government over himself if he has the entire control of his tongue. It is that by which he gives expression to his thoughts and passions; and if that is kept under proper restraint, all the rest of his members are as easily controlled as the horse is by having the control of the bit.

In many things we offend all - Πταιομεν ἁπαντες· We all stumble or trip. Dr. Barrow very properly observes: "As the general course of life is called a way, and particular actions steps, so going on in a regular course of right action is walking uprightly; and acting amiss, tripping or stumbling." There are very few who walk so closely with God, and inoffensively with men, as never to stumble; and although it is the privilege of every follower of God to be sincere and without offense to the day of Christ, yet few of them are so. Were this unavoidable, it would be useless to make it a subject of regret; but as every man may receive grace from his God to enable him to walk in every respect uprightly, it is to be deplored that so few live up to their privileges. Some have produced these words as a proof that "no man can live without sinning against God; for James himself, a holy apostle speaking of himself, all the apostles, and the whole Church of Christ, says, In many things we offend all." This is a very bad and dangerous doctrine; and, pushed to its consequences, would greatly affect the credibility of the whole Gospel system. Besides, were the doctrine as true as it is dangerous and false, it is foolish to ground it upon such a text; because St. James, after the common mode of all teachers, includes himself in his addresses to his hearers. And were we to suppose that where he appears by the use of the plural pronoun to include himself, he means to be thus understood, we must then grant that himself was one of those many teachers who were to receive a great condemnation, James 3:1; that he was a horse-breaker, because he says, "we put bits in the horses' mouths, that they may obey us," James 3:3; that his tongue was a world of iniquity, and set on fire of hell, for he says, "so is the tongue among our members," James 3:6; that he cursed men, "wherewith curse we men, James 3:9. No man possessing common sense could imagine that James, or any man of even tolerable morals, could be guilty of those things. But some of those were thus guilty to whom he wrote; and to soften his reproofs, and to cause them to enter the more deeply into their hearts, he appears to include himself in his own censure; and yet not one of his readers would understand him as being a brother delinquent.
Offend not in word, the same is a perfect man - To understand this properly we must refer to the caution St. James gives in the preceding verse: Be not many masters or teachers - do not affect that for which you are not qualified, because in your teaching, not knowing the heavenly doctrine, ye may sin against the analogy of faith. But, says he, if any man offend not, ου πταιει, trip not, εν λογῳ, in doctrine, teaching the truth, the whole truth, and nothing but the truth, the same is τελειος ανηρ, a man fully instructed in Divine things: How often the term λογος, which we render word, is used to express doctrine, and the doctrine of the Gospel, we have seen in many parts of the preceding comment. And how often the word τελειος, which we translate perfect, is used to signify an adult Christian, one thoroughly instructed in the doctrines of the Gospel, may be seen in various parts of St. Paul's writings. See among others, 1-Corinthians 2:6; 1-Corinthians 14:20; Ephesians 4:13; Philippians 3:15; Colossians 4:12; Hebrews 5:14. The man, therefore, who advanced no false doctrine, and gave no imperfect view of any of the great truths of Christianity; that man proved himself thereby to be thoroughly instructed in Divine things; to be no novice, and consequently, among the many teachers, to be a perfect master, and worthy of the sacred vocation.
Able also to bridle the whole body - Grotius, by body, believed that the Church of Christ was intended; and this the view we have taken of the preceding clauses renders very probable. But some think the passions and appetites are intended; yet these persons understand not offending in word as referring simply to well guarded speech. Now how a man's cautiousness in what he says can be a proof that he has every passion and appetite under control, I cannot see. Indeed, I have seen so many examples of a contrary kind, that I can have no doubt of the impropriety of this exposition. But it is objected "that χαλιναγωγεω signifies to check, turn, or rule with a bridle; and is never applied to the government of the Church of Christ." Probably not: but St. James is a very peculiar writer; his phraseology, metaphors, and diction in general, are different from all the rest of the New Testament writers, so as to have scarcely any thing in common with them, but only that he writes in Greek. The sixth verse is supposed to be a proof against the opinion of Grotius; but I conceive that verse to belong to a different subject, which commences James 3:3.

For in many things we offend all. (3) If any man offend not in word, the same [is] a perfect man, [and] able also to bridle the whole body.
(3) The seventh place, concerning the bridling of the tongue, joined with the former, so that it is revealed that there is no man in who can not justly be found fault as well, seeing as it is a rare virtue to bridle the tongue.

For in many things we offend all,.... Or "we all offend", slip and fall; no man lives without sin; in many, in most, if not in all things, a good man himself does, he sins; and this extends to the most solemn services, and best works of a good man; there is sin in his holy things, imperfections in all his performances; his righteousnesses are as filthy rags; hence no man can be justified by his works before God, nor is any man perfect in this life, so as to be without sin in himself: the apostle includes himself in this account, and that not out of modesty merely, or in a complaisant way, but as matter of fact, and what he found in himself, and observed in the conduct of his life: and now this is given as a reason why persons should not be anxious of teaching others, since in many instances, in common speech and conversation, men are apt to offend, and much more in a work which requires a multitude of words; or why men should be careful how they charge, censure, and reprove others, in a rash, furious, and unchristian manner; since they themselves are in the body, and may be tempted, and are attended with many infirmities, slips, and falls in common life.
If any man offend not in word; from slips and falls in general, the apostle proceeds to the slips of the tongue, and to the use and abuse of that member; and his sense is, that if a man has so much guard upon himself, and such a command over his tongue, and so much wisdom to use it, as to give no offence by it, to his fellow creatures, and fellow Christians:
the same is a perfect man; not that he is perfect in himself, and without sin, that is denied before; unless this is considered as a mere hypothesis, and by way of concession; that could there be found out a man that never, for instance, offends in word in anyone part of life, that man may be allowed, and be set down to be a perfect man; but no such man is to be found, and therefore none perfect: but rather the sense is, that he who in common is so careful of his speech, as not to offend his brethren, may be looked upon as a sincere and truly religious man; See James 1:26 or he may be accounted a wise and prudent man, such an one as in James 3:13 he is not a babe in understanding, a child in conduct, but a grown man; at full age; a perfect man; in which sense the word is used in 1-Corinthians 2:6.
And able also to bridle the whole body; either to govern the whole body, the church, to teach a society of Christians, and to feed them with knowledge, and with understanding; or rather, as he appears to be able to bridle that member of the body, the tongue, so likewise to be able, through the grace of God, to keep under the whole body, that sin shall not reign in it, or the lusts of it be in common obeyed.

all--The Greek implies "all without exception": even the apostles.
offend not--literally "stumbleth not": is void of offence or "slip" in word: in which respect one is especially tried who sets up to be a "teacher."

The same is able to bridle the whole body - That is, the whole man. And doubtless some are able to do this, and so are in this sense perfect.