Matthew 12:31-33 New Life Version (NLV)
31 I tell you, every sin and every bad word men speak against God will be forgiven, but bad words spoken against the Holy Spirit will not be forgiven. 32 Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven in this life or in the life to come.
The Sin of Saying Bad Things
33 “A good tree gives good fruit. A bad tree gives bad fruit. A tree is known by its fruit.