Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!
And boasteth great things. The verb μεγαλαυχεῖν means to boast one’s self, or to vaunt. But James in this passage did not intend to reprove ostentation so much as to show that the tongue is the doer of great things; for in this last clause he applies the previous comparisons to his subject; and vain boasting is not suitable to the bridle and the helm.
The foregoing chapter shows how unprofitable and dead faith is without works. It is plainly intimated by what this chapter first goes upon that such a faith is, however, apt to make men conceited and magisterial in their tempers and their talk. Those who set up faith in the manner the former chapter condemns are most apt to run into those sins of the tongue which this chapter condemns.
Commenting on James 3:1-12
Even so the tongue is a little member,.... Like the bit in the horse's mouth, or like the helm of a ship. And boasteth great things: and does them; for this word may be taken in a good sense: a bridled and sanctified tongue, that is influenced by the grace of God, and directed by the Spirit of God, as it speaks great and good...