the lips

Proverbs 10:11, 21
The mouth of the righteous is a fountain of life, but the mouth of the wicked conceals violence. . . .

Proverbs 15:7, 23
The lips of the wise spread knowledge, but not so the hearts of fools. . . .

Proverbs 20:15
There is gold and abundance of rubies, but lips of knowledge are a rare treasure.

Proverbs 26:3
A whip for the horse, a bridle for the donkey, and a rod for the backs of fools!

Exodus 10:12
Then the LORD said to Moses, "Stretch out your hand over the land of Egypt, that the locusts may swarm over it and devour every plant in the land--everything that the hail has left behind."

Isaiah 50:4
The Lord GOD has given Me the tongue of discipleship, to sustain the weary with a word. He awakens Me morning by morning; He awakens My ear to listen as a disciple.

Luke 4:22
All spoke well of Him and marveled at the gracious words that came from His lips. "Isn't this the son of Joseph?" they asked.

a rod

Proverbs 10:10
He who winks the eye causes grief, and foolish lips will come to ruin.

Proverbs 7:22
He follows her on impulse, like an ox going to the slaughter, like a deer bounding into a trap,

Proverbs 17:10
A rebuke affects a man of discernment more than a hundred lashes to a fool.

Proverbs 26:3
A whip for the horse, a bridle for the donkey, and a rod for the backs of fools!

Proverbs 27:22
Though you grind a fool in a mortar with a pestle along with grain, yet his folly will not depart from him.

Psalm 32:9
Do not be like the horse or mule, which have no understanding; they must be controlled with bit and bridle to make them come to you.

understanding

Proverbs 6:32
But he who commits adultery lacks judgment; whoever does so destroys himself.