JST, Matthew 12:37–38. Compare Matthew 12:43–44; see also JST, Luke 12:9–12

Whosoever speaks against the Holy Ghost will not be forgiven.

37 Then came some of the scribes and said unto him, Master, it is written that, Every sin shall be forgiven; but ye say, Whosoever speaketh against the Holy Ghost shall not be forgiven. And they asked him, saying, How can these things be?

38 And he said unto them, When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest and findeth none; but when a man speaketh against the Holy Ghost, then he saith, I will return into my house from whence I came out; and when he is come, he findeth him empty, swept and garnished; for the good spirit leaveth him unto himself.