Sometimes the best thing to say is nothing at all.

Ex 14:13-14
13 And Moses said to the people, "Do not be afraid. Stand still, and see the salvation of the Lord, which He will accomplish for you today. For the Egyptians whom you see today, you shall see again no more forever. 14 The Lord will fight for you, and you shall hold your peace."
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Ex 14:14
4 God will fight the battle for you.
And you? You keep your mouths shut!"
MES

If you hold your tongue you will keep your peace. When you’re right you don’t have to defend and offend. Even if you were right you became wrong if you had to hurt someone to prove your point. And when you’re wrong it’s better to keep your mouth shut and conceal your ignorance. We’ve all said things that have cost us, many times much more than it was worth. It’s better to wish you had said something, than to say things that you wish you had never said. Your words can be like arrows and once you let them go you can’t “take em back” so you ought not just shoot our mouth off at random. Win arguments by wounding people and soon your friends will be in short supply. No one wants unsought advice and especially not unsolicited correction. If your words are good and valuable then eventually people will ask for them and if not then you should keep them to yourself. So I think I should shut up now.

Ps 34:12-14
12 Who is the man who desires life,
And loves many days, that he may see good?
13 Keep your tongue from evil,
And your lips from speaking deceit.
14 Depart from evil and do good;
Seek peace and pursue it.
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Ps 64:3
3 Who sharpen their tongue like a sword,
And bend their bows to shoot their arrows — bitter words,
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Prov 10:11
11 The mouth of the righteous is a well of life,
But violence covers the mouth of the wicked.
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Prov 10:13-14
3 Wisdom is found on the lips of him who has understanding,
But a rod is for the back of him who is devoid of understanding.

14 Wise people store up knowledge,
But the mouth of the foolish is near destruction.
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Prov 10:19
19 In the multitude of words sin is not lacking,
But he who restrains his lips is wise.
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Prov 10:31-32
31 The mouth of the righteous brings forth wisdom,
But the perverse tongue will be cut out.
32 The lips of the righteous know what is acceptable,
But the mouth of the wicked what is perverse.
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Prov 11:11
11 By the blessing of the upright the city is exalted,
But it is overthrown by the mouth of the wicked.
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Prov 13:3
3 He who guards his mouth preserves his life,
But he who opens wide his lips shall have destruction.
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Prov 14:3
3 In the mouth of a fool is a rod of pride,
But the lips of the wise will preserve them.
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Prov 14:7
7 Go from the presence of a foolish man,
When you do not perceive in him the lips of knowledge.
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Prov 15:1-2
5 A soft answer turns away wrath,
But a harsh word stirs up anger.
2 The tongue of the wise uses knowledge rightly,
But the mouth of fools pours forth foolishness.
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Prov 15:28
28 The heart of the righteous studies how to answer,
But the mouth of the wicked pours forth evil.
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Prov 16:21
21 The wise in heart will be called prudent,
And sweetness of the lips increases learning.
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Prov 16:27-28
27 An ungodly man digs up evil,
And it is on his lips like a burning fire.
28 A perverse man sows strife,
And a whisperer separates the best of friends.
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Prov 17:27-28
27 He who has knowledge spares his words,
And a man of understanding is of a calm spirit.
28 Even a fool is counted wise when he holds his peace;
When he shuts his lips, he is considered perceptive.
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Prov 18:6-7
6 A fool's lips enter into contention,
And his mouth calls for blows.
7 A fool's mouth is his destruction,
And his lips are the snare of his soul.
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Prov 18:21
21 Death and life are in the power of the tongue,
And those who love it will eat its fruit.
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Prov 20:19
19 He who goes about as a talebearer reveals secrets;
Therefore do not associate with one who flatters with his lips.
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Prov 21:23
23 Whoever guards his mouth and tongue
Keeps his soul from troubles.
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Prov 26:7
7 Like the legs of the lame that hang limp
Is a proverb in the mouth of fools.
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Prov 26:9
Like a thorn that goes into the hand of a drunkard
Is a proverb in the mouth of fools.
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Eccl 5:2
2 Do not be rash with your mouth,
And let not your heart utter anything hastily before God.
For God is in heaven, and you on earth;
Therefore let your words be few.
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Matt 12:33-37
33 "Either make the tree good and its fruit good, or else make the tree bad and its fruit bad; for a tree is known by its fruit. 34 Brood of vipers! How can you, being evil, speak good things? For out of the abundance of the heart the mouth speaks. 35 A good man out of the good treasure of his heart brings forth good things, and an evil man out of the evil treasure brings forth evil things. 36 But I say to you that for every idle word men may speak, they will give account of it in the day of judgment. 37 For by your words you will be justified, and by your words you will be condemned."
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