THE LAW OF DOUBLE JEOPARDY
When a man is charged and sentenced to a jail term of seven years for breaking and entry, and it's later found out that after the jail term, this man did not commit the crime he was jailed for and has been innocent all these years,
If he goes ahead to commit that same crime (breaking and entry) after the previous jail term,
He can no longer be sent to jail for the crime he has now committed because he has already served a jail term for a crime he didn't commit.
This is what JESUS has done for us.
He has taken our place and has received our punishment ( A man who knew no sin) so we can be free from any punishment or sentence even though we have sinned.
We are now debtors to live His life of righteousness through faith in Him