Habacuc 1:8

Are more fierce. — Better, are sharper. This is the literal meaning of the verb. The ideas intended are those of activity and ferocity, both prompted by hunger. The evening wolf coming out of his lair to find prey is elsewhere an illustration of ravenous greediness. (See Sofonías 3:3 and Salmo 59:7).

In Jeremias 5:6 God’s punishment is likened to “a wolf of the evening,” “a lion out of the forest.” Jeremias 4:13 “his chariots shall be as a whirlwind; his horses are swifter than eagles,” is similar to Habacuc 1:8, but it is not necessary to regard it either as its original or its echo. Both passages are to some extent based on 2 Samuel 1:23.