Psalms 29:7,8

Divideth the flames of fire That is, casteth out many flashes of lightning. The Hebrew, חצב, chatzeb, signifies hews, or cuts up, divides, or distributes. “So the thunder, or voice of the Lord, is said to send forth the lightning; which is, indeed, the precursor of the thunder; the cause, and not the effect of it. The thunder, however, or voice of the Lord, is here, with great beauty and propriety, considered as that which commands and distributes the lightning.” Shaketh the wilderness That is, either the trees, or rather, the beasts of the wilderness, by a metonymy, as before. Compare this with the next verse; the wilderness of Kadesh Which he mentions as an eminent wilderness, vast and terrible, and well known to the Israelites, Numbers 20:1; Numbers 20:16, wherein, possibly, they had seen some such effects of thunder as are here mentioned.