Psalms 4:6

We have here, I. The foolish wish of worldly people: There be many that say, Who will show us any good? Who will make us to see good? What good they meant is intimated, Psa 4:7. It was the increase of their corn and wine; all they desired was plenty of the wealth of this world, that they might enjoy abundance of the delights of sense. Thus far they are right, that they are desirous of good and solicitous about it; but there are these things amiss in this wish: - 1. They enquire, in general, "Who will make us happy?" but do not apply themselves to God who alone can; and so they expose themselves to be ill-advised, and show they would rather be beholden to any than to God, for they would willingly live without him. 2. They enquire for good that may be seen, seeming good, sensible good; and they show no concern for the good things that are out of sight and are the objects of faith only. The source of idolatry was a desire of gods that they might see, therefore they worshipped the sun; but, as we must be taught to worship an unseen God, so to seek an unseen good, Co2 4:18. We look with an eye of faith further than we can see with an eye of sense. 3.

— Matthew Henry's Concise Commentary (public domain)

Contrast true with vain confidence. light of thy countenance upon us--figure for favor (Num 6:26; Psa 44:3; Psa 81:16).

— Jamieson-Fausset-Brown Commentary (public domain)