James 3:5

So also the tongue is a little member, and proudly vaunts. Behold how great a pile of wood, a little fire kindleth!

Revelation 13:5-6

And there was given to him a mouth speaking great things and blasphemies; and there was given to him authority to make war forty-two months.

2 Peter 2:18

Uttering pompous discourses of inanity, ensnaring by the lusts of the flesh, by lascivious impurities, those who had truly escaped from such as live in a course of delusion.

Jude 1:16

These men are murmurers, complainers at their lot in life, walking after their own corrupt passions; and their mouth utters hyperbolically pompous expressions, pretending high personal admiration, in order to make their advantage.

Treasury of Scripture Knowledge

Summary

Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!

Bible References

So

2 Peter 2:18
Uttering pompous discourses of inanity, ensnaring by the lusts of the flesh, by lascivious impurities, those who had truly escaped from such as live in a course of delusion.
Jude 1:16
These men are murmurers, complainers at their lot in life, walking after their own corrupt passions; and their mouth utters hyperbolically pompous expressions, pretending high personal admiration, in order to make their advantage.
Revelation 13:5
And there was given to him a mouth speaking great things and blasphemies; and there was given to him authority to make war forty-two months.