Karma has nothing to do with Christianity at all, its is a buddhist ideology that most people believe is revenge (instant karma) It is something the works its way through many kalpas of the universe and not something that must be served cold.

Jesus was is word made flesh, the word that started everything . He had no debt to anyone or anything, that isn't in scripture at all.

Buddhist enlightenment is not much more than a natural neural process in the amglidia, it can be electro acoustically reproduced. Persingers God Helmet.

If you replace the word Jesus in your post with the word Buddha you will find that is exactly what Buddha did, took on his karmic debt and explained to everyone how to do it themselves, and he also said that enlightenment isn't for everyone. Source: Buddha by Karen Armstrong.