Jesus has authority to forgive sins and is lord  of the holy days.

The Power Of Christ

But so that you may see that the Son of man has authority for the forgiveness of sins on earth, he said to the man, I say to you, Get up, take up your bed, and go to your house.
Mark 2:10-11

So that the Son of man is lord even of the Sabbath.
Mark 2:28