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.
How sad whether Savior prayed in Jn 17 11: 12 for the opposite result but knew that there would be those who perverted His Will and caused other to follow suit.
You do understand that for every bible verse you render, another can find a verse to question the interpretation of first verse rendered. Therein lies the brilliance of Jesus in establishing the magisterium, of course rejected by you. However, your rejection is interpreted as one of sinful pride.