Matthew 12:35

31 Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the 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, either in this age or in the one 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 known by its fruit.

34 You brood of vipers, how can you who are evil say anything good? For out of the overflow of the heart, the mouth speaks.

35 The good man brings good things out of his good store of treasure, and the evil man brings evil things out of his evil store of treasure.

36 But I tell you that men will give an account on the day of judgment for every careless word they have spoken.

37 For by your words you will be acquitted, and by your words you will be condemned.”

38 Then some of the scribes and Pharisees said to Him, “Teacher, we want to see a sign from You.”

39 Jesus replied, “A wicked and adulterous generation demands a sign, but none will be given it except the sign of the prophet Jonah.

Read all of Matthew 12