Please tell us all that Christ taught humanity about punishing others.
So you mean through the Jews and their enslavement system.
Jesus never punished anyone, nor did he withhold forgiveness. He lived in the Jewish society and pointed out the hypocrisy of the self-righteous, and society in general. All morality is subjective. There is no objective morality.
You base your morality in chosen lines from a specific book written by men. That is the definition of subjectivity.
Go chase your banker or the usher at your church around with a whip and find out if you aren't "subject" to a different set of morals.