Todo o que tiver blasfemado contra o Espírito Santo jamais terá perdão, mas será culpado de um pecado eterno. Pecar contra o Espírito Santo é atribuir ao demônio as obras que emanam do seu poder

21 When his relations heard of this, they set out to take charge of him; for they said, ‘He is out of his mind.’
22 The scribes who had come down from Jerusalem were saying, ‘He has Beelzebul,’ and, ‘It is through the prince of demons that he drives demons out.’
23 So he called them to him and spoke to them in parables,
24 ‘How can Satan drive out Satan? If a kingdom is divided against itself, that kingdom cannot stand.
25 And if a household is divided against itself, that household will not be able to stand.
26 Now if Satan has risen up against himself and is divided, he cannot stand either – it is the end of him.
27 But no one can make his way into a strong man’s house and plunder his property unless he has first tied up the strong man. Only then will he plunder the house.
28 ‘Amen I say to you, everything will be forgiven to the children of men, all their sins and whatever blasphemies they make;
29 but anyone who blasphemes against the Holy Spirit will never receive forgiveness, but is guilty of an eternal sin.’
30 This was because they were saying, ‘He has an unclean spirit.’