It's interesting to me that you asked whether a person could define the difference. Everything Jesus said, every thing He did including; the direction He took, north, south, east and west, Upward, downward, crossing over from one side to the other, using creation in a specific form.... and all this has hidden in it the difference between sin and accidental sin. In His walk, Jesus reveals that law also judges accidental sin in a way I could not see without Him.