These things have I spoken unto you in proverbs: but the time cometh, when I shall no more speak unto you in proverbs, but I shall shew you plainly of the Father.
These things have I spoken unto you in proverbs - or 'parables;' that is, in obscure language; as opposed to speaking "plainly" in the next clause:
But the time cometh - `but there cometh an hour,'
When I shall no more speak unto you in proverbs, but I shall show (or 'tell') you plainly of the Father - that is, by the Spirit's teaching. How "plain" that made all things, compared with anything they took up from Christ's own teaching, will be seen by comparing Peter's addresses after the Day of Pentecost with his speeches while his Lord was going out and in with the Twelve.