Hebrews 10:26-31 is very true...
It ties right back to and supports 1 Cor 3: 10-15 as the judgement is automatic in that if you are impure, you cannot stand to be near the Light of God that creates the “fire” while it is cleansing souls.
The great lie told by satan is that the “fire will kill you.” Many souls are even afraid of the fire... But the greatest fire is in Heaven where sin cannot exist. To those who are pure, they do not perceive it as fire, but only as Light. Even the lower levels of the Holy Spirit create fear in anyone holding onto sin.
The old custom of burning witches at the stake was a test as if they were full of the Holy Spirit the fire would not harm them.
We are all going to screw up and slip up. Becomes a matter of repentance, perspective, humility and holding fast to the Word.