“For every kind of beasts, and of birds, and of serpents, and of things in the sea, is tamed, and hath been tamed of mankind: But the tongue can no man tame; it is an unruly evil, full of deadly poison. Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitude of God. Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be. Doth a fountain send forth at the same place sweet water and bitter? Can the fig tree, my brethren, bear olive berries? either a vine, figs? so can no fountain both yield salt water and fresh.” (James 3:7–12, KJV)
The central thought here is, “out of the same mouth proceedeth blessing and cursing. This ought not to be.”
So, no cursing. By this, we do not mean “don’t use profanity.” See, it’s a contrast – bless/curse.
Bless others, Bless your enemies. don’t wish the worst for them. “I hate so and so. I hope he gets fired.” Yes, and he’ll go through economic hard times doing it.
A major, major theme in the Bible is that God is really concerned with how we treat one another. Bless people. do not curse them.