Proverbs 17:2-4

New Catholic Bible

² A wise servant will rule over an unworthy son
    and will share the inheritance as one of the brothers.
³ The crucible is for silver and the furnace is for gold,
    but it is the Lord who tests the heart.
⁴ An evildoer listens eagerly to wicked lips,
    and a liar pays heed to a slanderous tongue.