Proverbs 13:17 in the King James Version
A wicked messenger falleth into mischief: but a faithful ambassador is health.
Context
16 Every prudent man acts from knowledge, but a fool exposes folly.
17 A wicked messenger falls into trouble, but a trustworthy envoy gains healing.
18 Poverty and shame come to him who refuses discipline, but he who heeds correction shall be honored.