1. Be silent in the heat of anger - Prov 14 : 17
2. Be silent when you do not have all the facts - Prov 18 : 13
3. Be silent when you have not verified the story - Deut 17 : 6
4. Be silent when it is time to listen - Prov 13 : 1
5. Be silent when you are tempted to make of holy things - Eccl 5 : 2
6. Be silent when you are tempted to joke about sin - Prov 14 : 9
7. Be silent if you would be ashamed of your words later - Prov 8 : 8
8. Be silent if your words would convey the wrong impression - Prov 17 : 27
9. Be silent if the issue is none of your business - Prov 14 : 10
10. Be silent when you are tempted to tell an outright lie - Prov 4 : 24
11. Be silent if your words will damage someone else's reputation - Prov 16 : 27
12. Be silent if your words will damage a friendship - Prov 16 : 28
13. Be silent when you are feeling critical - James 3 : 9
14. Be silent if you can not say it without screaming it - Prov 25 : 28
15. Be silent if your words will be a poor reflection of the Lord or your friends and family - 1 Peter 2 : 21 - 23
16. Be silent if you may have to eat your words later - Prov 18 : 21
17. Be silent if you have already said it more than one time - Prov 19 : 13
18. Be silent when you are tempted to flatter a wicked person - Prov 24 : 24
19. Be silent when you are supposed to be working instead - Prov 14 : 23
"Whoever guards his mouth and tongue keep his soul from troubles" - Prov 21: 23
"Be still, and know that I am God" - Ps 46 : 10