It is the Spirit who gives life. The flesh does not offer anything of benefit. The words that I have spoken to you are spirit and life
Other versions
King James Version
But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who should betray him.English Standard Version
But there are some of you who do not believe." (For Jesus knew from the beginning who those were who did not believe, and who it was who would betray him.)New International Version
Yet there are some of you who do not believe." For Jesus had known from the beginning which of them did not believe and who would betray him.