To deny the work of the Holy Spirit among men is your shut off valve to salvation. Without the work of the Holy Spirit there is no salvation period. Your denial of the presence and operation of GOD in the earth is recognized in Heaven as the unforgivable or eternal sin.
Mark 3:29 but whoever blasphemes against the Holy Spirit never has forgiveness, but is guilty of an eternal sin"--
The Bible warns us against people who have a form of Godliness but at the same time deny His power. We are warned to say away from such people. If the presence and work of the Holy Spirit is denied you have denied GOD Himself.
Being Born Again is the work of the Holy Spirit. Unless you are Born Again you are not saved. Therefore if you deny the operation of the Holy Spirit you can never be saved because you have just dismissed the only means we have for entrance into Heaven. This is why GOD calls blaspheme of the Holy Spirit an eternal sin.
Titus 3:5 He saved us, not on the basis of deeds which we have done in righteousness, but according to His mercy, by the washing of regeneration and renewing by the Holy Spirit
