James 3:8

but the tongue can no man tame; it is an unruly evil, full of deadly poison.

Romans 3:13

Their throat is an open sepulchre: with their tongues they have used deceit; the poison of asps is under their lips:

James 3:6

And the tongue is a fire, a world of iniquity: so is the tongue among our several parts, defiling the whole body, inflaming the course of nature, and is set on fire by hell.

Revelation 12:9

And the great dragon was cast out, that old serpent, called the devil and Satan, who deceiveth the whole world: he was cast down to the earth, and his angels were cast down with him.

Treasury of Scripture Knowledge

Summary

But the tongue can no man tame; it is an unruly evil, full of deadly poison.

An unruly

General references

Bible References

An unruly

James 3:6
And the tongue is a fire, a world of iniquity: so is the tongue among our several parts, defiling the whole body, inflaming the course of nature, and is set on fire by hell.

Full

Romans 3:13
Their throat is an open sepulchre: with their tongues they have used deceit; the poison of asps is under their lips:
Revelation 12:9
And the great dragon was cast out, that old serpent, called the devil and Satan, who deceiveth the whole world: he was cast down to the earth, and his angels were cast down with him.

General references

Matthew 15:18
But the things, which proceed out of the mouth, come from the heart, and those defile a man.