Solomon
Proverbs 16:2ESV·traditional attribution

All the ways of a man are pure in his own eyes, but the LORD weighs the spirit.

Matthew Henry Presbyterian @wholebiblehenry

Note, 1. We are all apt to be partial in judging of ourselves: All the ways of a man, all his designs, all his doings, are clean in his own eyes, and he sees nothing amiss in them, nothing for which to condemn himself, or which should make his projects prove otherwise than well; and therefore he is confident of success, and that the answer...

John Gill Reformed Baptist @doctorgill

All the ways of a man are clean in his own eyes,.... All right and well, not only some, but all, having a high opinion of himself; for this is to be understood of a self-righteous man, who is pure in his own eyes, though not cleansed from his filthiness, and so fancies every way he walks in, and everything he does, is pure; this...

Jamieson-Fausset-Brown Reformed @jfbcommentary

clean--or, "faultless." weigheth--or, "tries," "judges," implying that they are faulty (Pro 21:2; Pro 24:12).