29 “Or again, how can anyone enter a strong man’s house and carry off his possessions unless he first ties up the strong man? Then he can plunder his house.
30 “Whoever is not with me is against me, and whoever does not gather with me scatters.
31 And so I tell you, every kind of sin and slander can be forgiven, but blasphemy against the Spirit will not be forgiven.
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.
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.
34 You brood of vipers, how can you who are evil say anything good? For the mouth speaks what the heart is full of.
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.”

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.