Well, seeing as how your religion doesn’t allow you to know for sure that you are saved, even in spite of the Bible’s direct statement that Christians CAN and DO know they are saved, I guess that would preclude you from discussing the surety of salvation?
Scripture teaches that one’s final salvation depends on the state of the soul at death. As Jesus himself tells us, "He who endures to the end will be saved" (Matt. 24:13; cf. 25:31–46). One who dies in the state of friendship with God (the state of grace) will go to heaven. The one who dies in a state of enmity and rebellion against God (the state of mortal sin) will go to hell.
This is what the Catholic Church teaches. Do you disagree with this?