He that trusteth in his own heart, is confident in his own wisdom (comp. 1 Corinthians 3:18, sqq.); he will perish in his folly.
But whoso walketh wisely. — Literally, in wisdom, which begins with the “fear of the Lord” (Proverbs 9:10), “shall be delivered” from the trouble into which the “fool” is brought by his self-confidence.