Matthew 12:36-37

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

James 1:26

If any man thinks he is a religious character among you, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.

James 3:2-12

For in many things we all offend. If any man offend not in word, he is a perfect man, and capable of reining in 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 tell you, That every idle word which men speak, for it shall they give an account in the day of judgment.
James 1:26
If any man thinks he is a religious character among you, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.
James 3:2
For in many things we all offend. If any man offend not in word, he is a perfect man, and capable of reining in the whole body.