"...for the remission of sins that are past..."
Be honest with the actual context here and then be honest with whether or not this fits your accepted doctrine.
I know I had to repent and start taking God at His Word once I realized I was embracing a false biblical position regarding justification through Jesus. Context does matter. It is "have sinned" and not "is sinning" or "will sin". The context regarding sin here is in reference to the past and not the future sins. For all have sinned, and come short of the glory of God;  Being justified freely by his grace through the redemption that is in Christ Jesus:  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;  To declare, I say , at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus. Romans 3:23-26