Young man (5): But taking one of the commandments of the Christian Bible, "Thou shall not kill," and applying that to a federal law or our American scriptures, there you have two laws that are not stemming from the same law, with different interpretations...
Prabhupāda: What is that?
Tamāla Kṛṣṇa: The law in the Bible says, "Thou shalt not kill." But the federal law of the United States says you must go into the Army and kill. So which to follow? There is a difference. They both say opposite things.
Prabhupāda: Yes. The thing is... It is very simple to understand that... Just like a soldier is killing and the state is awarding him medal. And the same soldier when comes home, if he kills somebody, he's hanged. Why? He can say, "When I was in the war field, I have killed hundreds of men and I was given gold medal. And now I have killed simply one man I am going to be hanged? Why?" So it is the cause. If the cause if great, then killing is no sin.