Do not speak in the hearing of a fool,
for he will despise the good sense of your words.
Apply your heart to instruction
and your ear to words of knowledge.
Let not your heart envy sinners,
but continue in the fear of the Lord all the day.
Surely there is a future,
and your hope will not be cut off.
Hear, my son, and be wise,
and direct your heart in the way.
Buy truth, and do not sell it;
buy wisdom, instruction, and understanding. (Proverbs 23:9, 12, 17-19, 23 ESV)