When and how to Rebuke, correct, Teach?

⁷ “He who corrects a scoffer gets shame for himself,
And he who rebukes a wicked man only harms himself.
⁸ Do not correct a scoffer, lest he hate you;
Rebuke a wise man, and he will love you.
⁹ Give instruction to a wise man, and he will be still wiser;
Teach a just man, and he will increase in learning.