During the time between Jesus' resurrection from the dead and His resurrection (forty days), was He caring the marks of sins? Whose sins?
That was a foreshadowing of the life of those who were crucified with Him, but as Paul stated, are "alive and remain." The point is, that foreshadowing is the answer to this issue of would-be sins after would-be salvation--we carry them for our remaining days, even though that which is written is true, that "it is no longer we who live, but Christ who lives in us."
This is a completely new thing since Pentecost: The mystery of "Christ in us."
The sins that Christ died for were for our whole life, even that time we walk with Him, and it is the evidence of sin coupled with the word of our testimony that He is in us--that "Jesus has come in the flesh" (ours), that was foreshadowed by Christ; and the reason Paul came to say "for me, to live is Christ", but that He also struggled.