Oh dear, I must have been drunk.  That it can be found in Leviticus, which is in the Bible, proves that it is a Purely Christian ethos.  And on further reflection, my lamentably snide observations regarding Confucius only confirm the grandeur of this Christian principle, and stand as proof of our Savior's ability to pass unnoticed back and forth through time and space. As always, thank-you for your fraternal correction.