Adam Clarke on Psalms 29:9

Maketh the hinds to calve - Strikes terror through all the tribes of animals; which sometimes occasions those which are pregnant to cast their young. This, I believe, to be the whole that is meant by the text. I meddle not with the fables which have been published on this subject both by ancients and moderns.

Discovereth the forests - Makes them sometimes evident in the darliest night, by the sudden flash; and often by setting them on fire.

And in his temple - Does this refer to the effect which a dreadful thunder-storm often produces? Multitudes run to places of worship as asylums in order to find safety, and pray to God. See on Psa 29:2 (note).