Divideth the flames of fire - Margin, "cutteth out." The Hebrew word - חצב châtsab - means properly "to cut, to hew, to hew out;" as, for example, stones. The allusion here is undoubtedly to lightning; and the image is either that it seems to be cut out, or cut into tongues and streaks - or, more probably, that the "clouds" seem to be cut or hewed so as to make openings or paths for the lightning. The eye is evidently fixed on the clouds, and on the sudden flash of lightning, as if the clouds had been "cleaved" or "opened" for the passage of it. The idea of the psalmist is that the "voice of the Lord," or the thunder, seems to cleave or open the clouds for the flames of fire to play amidst the tempest. Of course this language, as well as that which has been already noticed Psalm 29:5, must be taken as denoting what "appears" to the eye, and not as a scientific statement of the reality in the case. The rolling thunder not only shakes the cedars, and makes the lofty trees on Lebanon and Sirion skip like a calf or a young unicorn, but it rends asunder or cleaves the clouds, and cuts out paths for the flames of fire.

Divideth the flames of fire - The forked zigzag lightning is the cause of thunder; and in a thunder-storm these liahtnings are variously dispersed, smiting houses, towers, trees, men, and cattle, in different places.

The voice of the LORD divideth the (e) flames of fire.
(e) It causes the lightnings to shoot and glide.

The voice of the Lord divideth the flames of fire. Or "cutteth with flames of fire" (e); that is, the thunder breaks through the clouds with flames of fire, or lightning, as that is sometimes called, Psalm 105:32; and with which it cleaves asunder trees and masts of ships, cuts and hews them down, and divides them into a thousand shivers. Some refer this, in the figurative and mystical sense, to the giving of the law on Mount Sinai (f), on which the Lord descended in fire, and from his right hand went a fiery law; but rather this may be applied to the cloven or divided tongues of fire which sat upon the disciples on the day of Pentecost, as an emblem of the extraordinary gifts of the Spirit bestowed on them; though it seems best of all, as before, to understand this of the voice of Christ in the Gospel, which cuts and hews down all the goodliness of men, and lays them to the ground, Hosea 6:5; and is of a dividing nature, and lays open all the secrets of the heart, Hebrews 4:12; and, through the corruption or human nature, is the occasion of dividing one friend from another, Luke 12:51; and like flames of fire it has both light and heat in it; it is the means of enlightening men's eyes to see their sad estate, and their need of Christ, and salvation by him; and of warming their souls with its refreshing truths and promises, and of inflaming their love to God and Christ, and of setting their affections on things above, and of causing their hearts to burn within them.
(e) "caedit cum flammis ignis", Cocceius, Gejerus. (f) Jarchi in loc.

divideth--literally, "hews off." The lightning, like flakes and splinters hewed from stone or wood, flies through the air.

The flames - The lightnings.