<p>16:18 <em>They said: What is this that he said? A little while? We cannot decipher what he said</em>- They struggled over which period He had in view, and whether there were two 'little while' periods or whether they are referring to the same period. See on :16. The Lord was speaking in such a way that they would mull over His words. For the truth He presents here is so utterly profound and demanding that it cannot be accepted or perceived by just reading or hearing a few words and grasping the idea. The gift of the Spirit would mean that He would be amongst them just as really, and even moreso, as He had been in His physical presence.</p>