Solomon
Proverbs 10:9ESV·traditional attribution

Whoever walks in integrity walks securely, but he who makes his ways crooked will be found out.

Matthew Henry Presbyterian @wholebiblehenry

We are here told, and we may depend upon it, 1. That men's integrity will be their security: He that walks uprightly towards God and man, that is faithful to both, that designs as he ought and means as he says, walks surely; he is safe under a divine protection and easy in a holy security.

John Gill Reformed Baptist @doctorgill

He that walketh uprightly walketh surely,.... Or, "that walketh in perfection" (c) as the Targum. Not that walks without sin, no man does that; but that walks in the sincerity, integrity, and uprightness of his heart, both before God and men; who worships God in spirit and in truth, and speaks the truth in his heart to his neighbour; who is an Israelite indeed, in...

Jamieson-Fausset-Brown Reformed @jfbcommentary

perverteth his ways--acts deceitfully. known--discovered and punished.