30 “Whoever is not with me is against me, and whoever does not gather with me scatters.
References for Matthew 12:30
31 And so I tell you, every kind of sin and slander can be forgiven, but blasphemy against the Spirit will not be forgiven.
References for Matthew 12:31
32 Anyone who speaks a word against the Son of Man will be forgiven, but anyone who speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come.
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33 “Make a tree good and its fruit will be good, or make a tree bad and its fruit will be bad, for a tree is recognized by its fruit.
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34 You brood of vipers, how can you who are evil say anything good? For the mouth speaks what the heart is full of.
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35 A good man brings good things out of the good stored up in him, and an evil man brings evil things out of the evil stored up in him.
36 But I tell you that everyone will have to give account on the day of judgment for every empty word they have spoken.
37 For by your words you will be acquitted, and by your words you will be condemned.”
References for Matthew 12:37

The Sign of Jonah

38 Then some of the Pharisees and teachers of the law said to him, “Teacher, we want to see a sign from you.”
39 He answered, “A wicked and adulterous generation asks for a sign! But none will be given it except the sign of the prophet Jonah.
References for Matthew 12:39
40 For as Jonah was three days and three nights in the belly of a huge fish, so the Son of Man will be three days and three nights in the heart of the earth.
References for Matthew 12:40