Harry, Harry, Harry, are you not to walk in his footsteps, are you not to try to live to his standards set in the 10 commandments? 
.
Harry, "no matter how many mistakes we make we are forgiven",  I'll let God be the judge of that. 
.
So what's one more lie, cheating one more time, using God's name in vain, one more adulterous affair, demeaning one more person, Harry's standard it's OK because no matter how many mistakes we make we are forgiven, at least according to Harry's standards.