Matthew 12:36-37

And I say to you, that every idle word that men shall speak, they shall give account concerning it in the day of judgment;

James 1:26

If anyone thinks that he is religious, while he bridles not his own tongue, but deceives his own heart, this man's religion is vain.

James 3:2-12

For in many things we all stumble. If anyone stumbles not in word, the same is a perfect man, able to restrain also 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
And I say to you, that every idle word that men shall speak, they shall give account concerning it in the day of judgment;
James 1:26
If anyone thinks that he is religious, while he bridles not his own tongue, but deceives his own heart, this man's religion is vain.
James 3:2
For in many things we all stumble. If anyone stumbles not in word, the same is a perfect man, able to restrain also the whole body.