Adam Clarke on Job 34:3

The ear trieth words - I do not think, with Calmet, that the inward ear, or judgment, is meant simply. The Asiatics valued themselves on the nice and harmonious collection of words, both in speaking and in writing; and perhaps it will be found here that Elihu labors as much for harmonious versification as for pious and weighty sentiments. To connect sense with sound was an object of general pursuit among the Hebrew, Arabic, and Persian poets; and so fond are the latter of euphony, that they often sacrifice both sense and sentiment to it; and some of the Greek poets are not exempt from this fault.