Proverbs 13:16-18

Amplified Bible

¹⁶ 
Every prudent and self-disciplined man acts with knowledge,
But a [closed-minded] fool [who refuses to learn] displays his foolishness [for all to see].
¹⁷ 
A wicked messenger falls into hardship,
But a faithful ambassador brings healing.
¹⁸ 
Poverty and shame will come to him who refuses instruction and discipline,
But he who accepts and learns from reproof or censure is honored.