Where does karma come from?

"With the earthly concept of time the human being believes that something happening here or there can have an effect only in relation to what follows afterwards. However, in the spiritual world it is so, that something happening reveals itself beforehand in its effects, that in its effects it is already present beforehand. Where does the blessing of karma come from? From what in our development on the Earth has this blessing that karma exists arisen? Karma comes from no other force in the whole of evolution than from Christ."
--Rudolf Steiner, from a lecture given March 22, 1909