Paul said the remission of sins provided by the blood poured out on the cross was for PAST sins!
This is critical. Everyone should get their brains and hearts around this!
Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are PAST, through the forbearance of God; Romans 3:25
Peter confirmed this when he referenced OLD SINS in 2 Peter 1:9. He in no way said present or future unrepentant sins in fact he elaborated further on this in the next chapter, specifically in verses 19 through 22..
But he that lacketh these things is blind, and cannot see afar off, and hath forgotten that he was purged from his old sins. 2 Peter 1:9
While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage.  For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.  For it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them.  But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire. 2 Peter 2:19-22
Think really hard on this because what you are doing by spreading the garbage gospel of OSAS is you are being one of those who Peter referred to in verse 19 above. You are being corrupt in your promising others liberty while they are sinning where there is in fact bondage and spiritual death due to their unrepentant sin. This is no different than the serpent lying to the once perfectly saved Eve that she would not die if she disobeyed God (sin)...