Remain Silent !

When you are angry
A quick-tempered man does foolish things, and a crafty man is hated. Proverbs 14:17

When You don't have all the facts
He who answers before listening? that is his folly and his shame. Proverbs 18:13

When It's time to listen
A wise son heeds his father's instruction, but a mocker does not listen to rebuke. Proverbs 13

When you should be working instead
All hard work brings a profit,  but mere talk leads only to poverty. Proverbs 14:23

When you may have to eat your words later
The tongue has the power of life and death,  and those who love it will eat its fruit. Proverbs 18:21

When It would destroy a friendship
A perverse man stirs up dissension,  and a gossip separates close friends. Proverbs 16:28

When It would destroy a reputation
A scoundrel plots evil, and his speech is like a scorching fire. Proverbs 16:27

When Ashamed of your words later
The words of a gossip are like choice morsels;  they go down to a man's inmost parts. Proverbs 18:8
When You want to appear wise
Even a fool is thought wise if he keeps silent, and discerning if he holds his tongue.Proverbs 17:28

When Tempted to joke about sin
Fools mock at making amends for sin,  but goodwill is found among the upright. Proverbs 14:9

When You haven't verified the story
Do you see a man who speaks in haste? There is more hope for a fool than for him. Proverbs 29:20

When you are flattered.
But then they would flatter him with their mouths, lying to him with their tongues. Psalm 78:36

When you are speaking to wicked person.
A wicked man listens to evil lips; a liar pays attention to a malicious tongue. Proverbs 17:4