Proverbs 11:12 in the King James Version
He that is void of wisdom despiseth his neighbour: but a man of understanding holdeth his peace.
Context
11 By the blessing of the upright, the city is exalted, but it is overthrown by the mouth of the wicked.
12 One who despises his neighbor is void of wisdom, but a man of understanding holds his peace.
13 One who brings gossip betrays a confidence, but one who is of a trustworthy spirit is one who keeps a secret.