Proverbs 30:32-Proverbs 31:1 - Keep Calm And Quiet
32 If you've foolishly exalted yourself or if you've plotted evil, put your hand over your mouth.
33 Just as whipping milk produces butter, and twisting the nose causes bleeding, so also stirring up anger produces contention.
1 The words of King Lemuel a pronouncement with which his mother encouraged him.