Dad Ernie said:
1 John 5:16-17 If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it. 17 All unrighteousness is sin: and there is a sin not unto death.
Mark 3:28-29 Verily I say unto you, All sins shall be forgiven unto the sons of men, and blasphemies wherewith soever they shall blaspheme: 29 But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation:
Blessings,
Dad Ernie
The sin unto death is unbelief in Christ Jesus. The Apostle is saying that this is not to be prayed for (that is, for another way of salvation).
There is only one way of salvation:
John 14:6 Jesus answered, I am the way and the truth and the life. No one comes to the Father except through me.
And Jesus already prayed the prayer "If there be ANY other way..."
Matthew 26:39 Going a little farther, he fell with his face to the ground and prayed, My Father,
if it is possible, may this cup be taken from me. Yet not as I will, but as you will. 40 Then he returned to his disciples and found them sleeping. Could you men not keep watch with me for one hour? he asked Peter. 41 Watch and pray so that you will not fall into temptation. The spirit is willing, but the body is weak. 42 He went away a second time and prayed, My Father,
if it is not possible for this cup to be taken away unless I drink it, may your will be done.
Mark 14:35 Going a little farther, he fell to the ground and prayed that
if possible the hour might pass from him. 36 Abba, Father, he said,
everything is possible for you. Take this cup from me. Yet not what I will, but what you will.
But it was not possible that man could be saved lest he drank that cup and endured that hour.
Acts 4:12 Salvation is found in no one else, for there is no other name under heaven given to men by which we must be saved.
John 15:26 When the Counselor comes, whom I will send to you from the Father,
the Spirit of truth who goes out from the Father, he will testify about me.
Denying the testimony of the Holy Spirit is the blasphemy of the Holy Spirit.