For if we go on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins, but a fearful expectation of judgement, and a fury of fire that will consume the adversaries.  (Hebrews 10:26-27)

Humanity is in an adversarial relationship with God, that is our natural state.  The writer of Hebrews says that once that realisation has dawned, in other words, been revealed by God, the soul is in a parlous position.  For thereafter continuing to behave as we have been has dire consequences which are eternally lethal.