Proverbs 21:23
"Whoso keepeth his mouth and his tongue keepeth his soul from troubles."
Cross References (ranked by relevance)
Proverbs 13:3
30
He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.
Proverbs 18:21
22
Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof.
James 1:26
20
If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion is vain.
Proverbs 12:13
19
The wicked is snared by the transgression of his lips: but the just shall come out of trouble.
Proverbs 10:19
17
In the multitude of words there wanteth not sin: but he that refraineth his lips is wise.