I don't mean to be rude, but one might as well be a Muslim with the kind of thinking that they aren't sure or don't know. Do you have faith? In Jesus? I am confidant in my Lord to keep me to the very end, saved and sanctified.
Act 23:1 And looking intently at the council, Paul said, "Brothers, I have lived my life before God in all good conscience up to this day."
2Th 3:3 But the Lord is faithful, who shall establish you, and keep you from evil.
Jud 1:24 Now unto him that is able to keep you from falling, and to present you faultless before the presence of his glory with exceeding joy
Why even reach out to lost souls if we don't know they will be saved? Are we just hoping we will be saved or do we have a great Hope we ARE saved. Salvation is not a lottery