63 It is the spirit that quickeneth, the flesh profiteth nothing; the words that I have spoken to you, be spirit and life. (It is the Spirit that giveth life, the flesh profiteth nothing; the words that I have spoken to you, be of the Spirit and of life.)
64 But there be some of you that believe not. For Jesus knew from the beginning, which were believing (or who believed in him), and who was to betray him.