JMNT(i)
61 Now Jesus, knowing from having seen within Himself, that His disciples are continuing to buzz in discontented complaint (murmur; grumble; hold puzzled conversations) about this (or: around this [subject]), says to them, "Is this continuing to trip you folks up (or: Is this now snaring or trapping you; or: = Is this a problem for you)?
62 "Suppose, then, you could continuously watch (contemplatively gaze at) the Son of Mankind (the Son of the Human; = the Human Being) progressively stepping back up again (or: presently ascending) to where He was being before (or: continued existing formerly)?
63 "The Spirit (or: Breath-effect; or: spirit; Breath; Attitude) is (or: continues being) the One continuously creating life (or: repeatedly making alive; habitually forming life). The flesh continues being of no help or benefit to anything (furthers or augments not one thing). The declarations (gush-effects; spoken words; sayings; results of the Flow) which I Myself have spoken to you folks are (or: continue to be) Spirit (or: spirit; Breath-effect; attitude) and they are (or: continue being) Life.