Proverbs 28:26 in the World English Bible
One who trusts in himself is a fool; but one who walks in wisdom is kept safe.
Context
25 He that is of a proud heart stirreth up strife: but he that putteth his trust in the LORD shall be made fat.
26 He that trusteth in his own heart is a fool: but whoso walketh wisely, he shall be delivered.
27 He that giveth unto the poor shall not lack: but he that hideth his eyes shall have many a curse.