And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
James 3:6
King James Version (public domain)
Traditionally attributed to James · 1st century AD · Brother of Jesus and leader of the church in Jerusalem
Context
4Behold also the ships, which though they be so great, and are driven of fierce winds, yet are they turned about with a very small helm, whithersoever the governor listeth.
5Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!
6And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
7For every kind of beasts, and of birds, and of serpents, and of things in the sea, is tamed, and hath been tamed of mankind:
8But the tongue can no man tame; it is an unruly evil, full of deadly poison.