Proverbs 18:11 in the King James Version
The rich man’s wealth is his strong city, and as an high wall in his own conceit.
Context
10 The LORD’s name is a strong tower: the righteous run to him, and are safe.
11 The rich man’s wealth is his strong city, like an unscalable wall in his own imagination.
12 Before destruction the heart of man is proud, but before honor is humility.