In context
60On hearing it, many of his disciples said, “This is a hard saying. Who can listen to it?” 61Jesus knew within himself that his disciples were murmuring about it, and he said to them, “Does this shake you? 62Then what if you were to see the Son of Man ascending to where he was before? 63The Spirit is what gives life; the flesh is of no use at all. The words I have spoken to you are spirit and are life. 64But there are some among you who do not believe.” For Jesus knew from the beginning which ones did not believe, and who it was who would betray him.
