18 However, whatever comes out of the mouth comes from the heart, and those things defile a man.+

29 Let a rotten word not come out of your mouth,+ but only what is good for building up as the need may be, to impart what is beneficial to the hearers.+

6 The tongue is also a fire.+ The tongue represents a world of unrighteousness among our body members, for it defiles all the body+ and sets the whole course of life* on fire, and it is set on fire by Ge·henʹna.*

9 With it we praise Jehovah,* the Father, and yet with it we curse men who have come into existence “in the likeness of God.”+