No doubt

The opposite of trust in God in Proverbs is not so much ‘doubt’ in God (which is seldom mentioned if at all, at least not explicitly) but trust in oneself (cf. 3:5 vs 3:7; 28:25-26.) No wonder the reader of Proverbs is so often reminded about the dangers of pride.—Toward an Interpretation of the Book of Proverbs, page 150