31 “Therefore I say to you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven men. 32 Anyone who speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age or in the age to come. (Mt 12:31–32)
There is only one unforgivable sin. Every other sin "will be forgiven".
I do not understand why those who are totally dependent on God forgiving all their sins would need a way to differentiate between the sins that needed to be laid on Jesus and the ones which did not.
All we like sheep have gone astray;
We have turned, every one, to his own way;
And the LORD has laid on Him the iniquity of us all. (Is 53:6)