Solomon
Proverbs 3:5ESV·traditional attribution

Trust in the LORD with all your heart, and do not lean on your own understanding.

Matthew Henry Presbyterian @wholebiblehenry

We are here taught to live a life of communion with God; and without controversy great is this mystery of godliness, and of great consequence to us, and, as is here shown, will be of unspeakable advantage. I. We must have a continual regard to God's precepts, Pro 3:1, Pro 3:2. 1.

Commenting on Proverbs 3:1-6

John Gill Reformed Baptist @doctorgill

Trust in the Lord with all thine heart,.... Not in a creature, the best, the holiest, and the highest; not in any creature enjoyment, as riches, strength, and wisdom; nor in any outward privilege, arising from natural descent and education; not in a man's self, in his own heart, which is deceitful; nor in any works of righteousness done by him; not in a profession...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Trust . . . heart--This is the center and marrow of true wisdom (Pro 22:19; Pro 28:25). The positive duty has its corresponding negation in the admonition against self-confidence.