Psalms 104:20 - Joseph Benson’s Commentary on the Old and New Testaments

Thou makest darkness Which succeeds the light, by virtue of thy decree and established order; and it is night Which, though black and dismal, contributes to the beauty of nature, and is as a foil to the light of the day. Wherein all the beasts of the forest do creep forth To seek their prey, which they are afraid to do in the day-time, God having put the fear and dread of man upon them, (Genesis 9:2,) which contributes as much to man's safety as to his honour. Thus, by this vicissitude of day and night, God hath wisely and mercifully provided, both for men, that they may follow their daily labours without danger from wild beasts, and for the beasts, that they may procure a subsistence.