Disabuse yourself of such nonsensical rants. The Sin of presumption is the core message incorporated into Mt 7 21:22. Be one who interprets the bible in accordance with and pursuant to the Will Of God. Renounce pagan prideful interpretations and accept Jesus as you Lord and Savior. Accept the Truth as He will set you free.
The fictitious "sin of presumption" is just more of Rome trying to corral its members into a pen of its own making.
There's goats in that pen, not sheep.
"Be not afraid; only believe." -- Mark 5:36
Rome denies Christ. Flee from the idolatry that Rome teaches.