(Luke 12:10)And every one, who shall speak a word against the Son of man,
it shall be forgiven him:
but unto him that blasphemeth against the Holy Spirit
it shall not be forgiven.
The question arises: does Jesus forgive even the demons?
The answer is a strong YES:
(Luke 8:26-39)26 And they sailed down to the country of the Gadarenes,
which is over against Galilee.
27 And when he went forth to land,
there met him out of the city a certain man,
which had demons long time, and wore no cloke,
neither abode in a house,
but among the tombs.
28 When he saw Jesus, he cried out, and fell down before him,
and with a loud voice said,
What have I to do with thee, Jesus, thou Son of God most high?
I beseech thee, torment me not.
29 (For he had commanded the unclean spirit to come out of the man.
For often times it had caught him: and he was kept guarded and bound
with chains and in fetters; and he brake the bands asunder,
and was driven of the demon into the deserts).
30 And Jesus asked him, saying, What is thy name?
And he said, Legion: because many demons were entered into him.
31 And they besought him that he would not command them
to go out into the abyss.
32 And there was there an herd of many swine feeding on the mountain:
and they besought him that he would allow them to enter into them.
And he allowed them.
33 Then went the demons out of the man, and entered into the swine:
and the herd ran violently down the steep place into the lake,
and were choked.
34 When they that fed them saw what was done, they fled,
and went and told it in the city and in the country.
35 Then they went out to see what was done; and came to Jesus,
and found the man, out of whom the demons were departed,
sitting at the feet of Jesus, clothed, and in his right mind:
and they were afraid.
36 They also which saw it told them by what means
he that was possessed of the demons was saved.
37 Then the whole multitude of the country of the Gadarenes round about
asked him to depart from them; for they were holden with great fear:
and he entered into the ship, and returned back again.
38 Now the man, from whom the demons were departed,
besought him that he might be with him:
but Jesus sent him away, saying,
39 Return to thine own house,
and recount how great things God hath done unto thee.
And he went his way, publishing throughout the whole city
how great things Jesus had done unto him.
Note that the demons have fear to be thrown in the Abyss. According to the words of Jesus himself, their fear is absolutely justified:
(Luke 12:5)But I will show you whom ye shall fear:
Fear him, which after he hath killed
hath authority to cast into Gehenna;
yea, I say unto you, Fear him.
So Couchoud (note the references to Origen so much loved by Secret Alias ) :
(Creation of Christ, p. 408)
Jesus “indubitably means the creator.... He condemns the severity of the creator who must slay in Gehenna” (T. iv. 28). The god of the Jews said himself: “I kill” (Deut. xxxii. 39). “This passage is constantly brought to our notice with the remark, You see how savage and inhuman is the god of the law” (Origen, Hom. in Ierem., i. 16). He it is who “rages” (T. ii. 13). He it is, then, who is to be feared. “The judge god desires to be feared, for his are the objects of fear, anger, cruelty, judgments, vengeance, condemnation” (T. iv. 8). “The good god is not to be feared” (T. iv. 8). “The Marcionites boast that they do not fear their god at all; the evil god is to be feared, they say, but the good god is to be loved” (T. i. 27).
But Jesus for Marcion is not the Christ of the Creator. Therefore, accordingly, Jesus should forgive EVEN the demons.
He allowed that the demons escape to the ''herd of many swine''.
But a mistake arises: for pure coincidence, the swine (possessed by demons) go really into the lake, that may allegorize very well the Abyss of the Creator. At least in the eyes of the people of the place.
These people fall in the mistake of believing that Jesus deceived very cruelly the demons, by allowing them only apparently (therefore: falsely) a way of escape but really betraying them.
In short, they believe wrongly that Jesus acts as a cruel deceiver (as the same Creator).
Therefore there is no wonder that they ''asked him to depart from them; for they were holden with great fear''.
Therefore Couchoud is very right in saying so:
The confessor from whom a word against Jesus shall have been torn will be pardoned; Peter was guilty of this crime (xxii. 57). But if he has blasphemed against the Spirit which inspires him (verse 12), he will not be pardoned. The Romans made accused Christians utter curses on Christ (Pliny, Letters, x. 96). The Jews probably required them to avow that they were inspired by an evil spirit (cf. John vii. 20; viii. 48 and 52).
(p. 408)
The reference to Pliny allows me to date all the Gospels at least AFTER the 115 CE.