Job 1:22

1:22 In all this Job did not sin, nor did he charge God with moral impropriety.

Psalms 39:1

Psalm 39

For the music director, Jeduthun; a psalm of David.

39:1 I decided, “I will watch what I say

and make sure I do not sin with my tongue.

I will put a muzzle over my mouth

while in the presence of an evil man.”

Psalms 59:12

59:12 They speak sinful words.

So let them be trapped by their own pride

and by the curses and lies they speak!

Matthew 12:34-37

12:34 Offspring of vipers! How are you able to say anything good, since you are evil? For the mouth speaks from what fills the heart. 12:35 The good person brings good things out of his good treasury, and the evil person brings evil things out of his evil treasury. 12:36 I tell you that on the day of judgment, people will give an account for every worthless word they speak. 12:37 For by your words you will be justified, and by your words you will be condemned.”

James 3:2

3:2 For we all stumble in many ways. If someone does not stumble in what he says, he is a perfect individual, able to control the entire body as well.