Proverbs 14:23 et al

In all labor there is profit, but idle chatter leads only to poverty.

~Proverbs 14:23

Let another man praise you, and not your own mouth; a stranger, and not your own lips.

~Proverbs 27:2

Whoever keeps the fig tree will eat its fruit; so he who waits on his master will be honored.

~Proverbs 27:18