Whether or not one can "loose their salvation", it would not seem that "blaspheme against the Holy Spirit" is something one would stumble into by a careless accident. It seems a settled and determined opposition to the work of God and a deliberate twisting and rejection of the work of the Holy Spirit.
Good observation, and insightful.
However, those who blaspheme the Spirit "may" be have been taught in their denomination that "tongues" or healing's" or the gifts of the Spirit are of the devil, since all that has ceased after the last Apostle died [cessation].
Another example is a Christian who
falls away, and becomes hardened through the deceitfulness of sin, could Blasphem the Holy Spirit.
12 Beware, brethren, lest there be in any of you an evil heart of unbelief in
departing from the living God; 13 but exhort one another daily, while it is called “Today,” lest any of you be
hardened through the deceitfulness of sin. 14 For we have become partakers of Christ if we hold the beginning of our confidence steadfast to the end, 15 while it is said:
“Today, if you will hear His voice,
Do not harden your hearts as in the rebellion.”
Hebrews 3:12-15
Did you know the word
"fall away" and
"depart from" are the same Greek word?
13 But the ones on the rock
are those who, when they hear, receive the word with joy; and these have no root, who believe for a while and in time of temptation
fall away. Luke 8:13
Did you know the Luke 8:13 and Hebrews 3:12-15 pertain to the same exact subject matter.
- Hebrews is a legal argument showing who Christ is and comparing the law of Moses, the High Priest, and those things, so that the believing Jews would have the truth they needed to stand when persecution comes, and a warning to those who turn away and go back to the law of Moses.
A Christian believer who turns away, departs from, or falls away from Christ under persecution from unbelieving Jews, who are in a religion who rejects Jesus as Messiah, can not be brought to repentance again.
4 For
it is impossible for those who were once enlightened, and have tasted the heavenly gift, and have become partakers of the Holy Spirit, 5 and have tasted the good word of God and the powers of the age to come, 6 if they fall away, to renew them again to repentance, since they crucify again for themselves the Son of God, and put
Him to an open shame. Hebrews 6:4-6
JLB