Matthew 12:36-37

But I say to you, That for every idle word which men speak, they shall give account in the day of judgment.

James 1:26

If any one among you seems to be religious, and bridles not his tongue, but deceives his own heart, this man's religion is vain.

James 3:2-12

For in many things we all offend. If any one offends not in word, he is a perfect man, able also to bridle the whole body.

Treasury of Scripture Knowledge

Summary

He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.

General references

Bible References

General references

Matthew 12:36
But I say to you, That for every idle word which men speak, they shall give account in the day of judgment.
James 1:26
If any one among you seems to be religious, and bridles not his tongue, but deceives his own heart, this man's religion is vain.
James 3:2
For in many things we all offend. If any one offends not in word, he is a perfect man, able also to bridle the whole body.