en_tn/pro/13/17.md

falls into trouble

"is unreliable" or "does something evil"

a faithful envoy

"a faithful messenger" or "a faithful ambassador"

brings healing

The word "healing" here is probably a metaphor for reconciliation between the one who sends the envoy and the person to whom the envoy is sent..Alternate translation: "brings reconciliation" (See: rc://en/ta/man/jit/figs-metaphor)