10:11 The mouth of the righteous is a fountain of life, but the mouth of the wicked conceals violence.
10:19 When words are many, transgression is not lacking, but whoever restrains his lips is prudent.
10:20 The tongue of the righteous is choice silver; the heart of the wicked is of little worth.
10:31 The mouth of the righteous brings forth wisdom, but the perverse tongue will be cut off.
10:32 The lips of the righteous know what is acceptable, but the mouth of the wicked, what is perverse.
11:9 With his mouth the godless man would destroy his neighbor, but by knowledge the righteous are delivered.
12:18 There is one whose rash words are like sword thrusts, but the tongue of the wise brings healing.
12:25 Anxiety in a man's heart weighs him down, but a good word makes him glad.
13:2 From the fruit of his mouth a man eats what is good, but the desire of the treacherous is for violence.
13:3 Whoever guards his mouth preserves his life; he who opens wide his lips comes to ruin.
15:4 A gentle[z] tongue is a tree of life, but perverseness in it breaks the spirit.
15:23 To make an apt answer is a joy to a man, and a word in season, how good it is!
16:13 Righteous lips are the delight of a king, and he loves him who speaks what is right.
16:21 The wise of heart is called discerning, and sweetness of speech increases persuasiveness.
16:23 The heart of the wise makes his speech judicious and adds persuasiveness to his lips.
16:24 Gracious words are like a honeycomb, sweetness to the soul and health to the body.
17:27 Whoever restrains his words has knowledge, and he who has a cool spirit is a man of understanding.
18:4 The words of a man's mouth are deep waters; the fountain of wisdom is a bubbling brook.
18:8 The words of a whisperer are like delicious morsels; they go down into the inner parts of the body.
18:21 Death and life are in the power of the tongue, and those who love it will eat its fruits.
20:19 Whoever goes about slandering reveals secrets; therefore do not associate with a simple babbler.[i]
21:23 Whoever keeps his mouth and his tongue keeps himself out of trouble.
25:11 A word fitly spoken is like apples of gold in a setting of silver.
26:2 Like a sparrow in its flitting, like a swallow in its flying, a curse that is causeless does not alight.