James 1:26

If anyone thinks he is religious, and does not bridle his tongue, but deceives himself, his religious worship is worthless.

James 3:2-13

For we all make many a slip. If anyone never slips in speech, he is a man of maturity; he can control his whole body too.

Treasury of Scripture Knowledge

Summary

Whoso keepeth his mouth and his tongue keepeth his soul from troubles.

General references

Bible References

General references

James 1:26
If anyone thinks he is religious, and does not bridle his tongue, but deceives himself, his religious worship is worthless.
James 3:2
For we all make many a slip. If anyone never slips in speech, he is a man of maturity; he can control his whole body too.