Solomon
Proverbs 15:3ESV·traditional attribution

The eyes of the LORD are in every place, keeping watch on the evil and the good.

Matthew Henry Presbyterian @wholebiblehenry

The great truths of divinity are of great use to enforce the precepts of morality, and none more than this - That the eye of God is always upon the children of men. 1. An eye to discern all, not only from which nothing can be concealed, but by which every thing is actually inspected, and nothing overlooked or looked slightly upon: The eyes of...

John Gill Reformed Baptist @doctorgill

The eyes of the Lord are in every place,.... Which are expressive of his omniscience, of the full, clear, distinct, and perfect knowledge, which he has of all creatures and things; so that nothing is hid from him, but all open and manifest to him; as they are to Christ the essential Word, Heb 4:13; and also of the providence of God with respect to...

Jamieson-Fausset-Brown Reformed @jfbcommentary

beholding--watching (compare Pro 5:21; Psa 66:7).