James 3:5
So is it with the tongue. Small as it is, it is a great boaster. Think how tiny a spark may set the largest forest ablaze!
Revelation 13:5-6
The Beast was given 'a mouth that spoke proudly' and blasphemously, and it was empowered to work its will for forty-two months.
2 Peter 2:18
With boastful and foolish talk, they appeal to the passions of man's lower nature, and, by their profligacy, entice those who are just escaping from the men who live such misguided lives.
Jude 1:16
These men are always murmuring, and complaining of their lot; they follow where their passions lead them; they have arrogant words upon their lips; and they flatter men for the sake of what they can get from them.