Context / meaning
Matthew 12 [25.] Knowing their thoughts, Jesus said to them, “Every kingdom divided against itself is brought to desolation, and every city or house divided against itself will not stand. If Satan casts out Satan, he is divided against himself. How then will his kingdom stand? If I by Beelzebul cast out demons, by whom do your children cast them out? Therefore they will be your judges. But if I by the Spirit of God cast out demons, then God’s Kingdom has come upon you. Or how can one enter into the house of the strong man, and plunder his goods, unless he first bind the strong man? Then he will plunder his house.
Matthew 12 [30.] “He who is not with me is against me, and he who doesn’t gather with me, scatters. Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven men. Whoever speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, neither in this age, nor in that which is to come.
Matthew 12 [33.] “Either make the tree good, and its fruit good, or make the tree corrupt, and its fruit corrupt; for the tree is known by its fruit. You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks. The good man out of his good treasure brings out good things, and the evil man out of his evil treasure[d] brings out evil things. I tell you that every idle word that men speak, they will give account of it in the day of judgment. For by your words you will be justified, and by your words you will be condemned.”
d. Matthew 12:35 TR adds “of the heart”.