He says, And in that day, i. e. when I shall have risen again, ye shall ask Me nothing, i. e. not say to Me, Shew us the Father, and, Whither goest Thou? since ye will know this by the teaching of the Holy Ghost: or, Ye shall ask Me nothing, i. e. not want Me for a Mediator to obtain your requests, as My name will be enough, if you only call upon that: Verily, verily, I say unto you, Whatsoever ye shall ask the Father in My Name, He will give it you. Wherein He shews His power; that neither seen, or asked, but named only to the Father, He will do miracles. Do not think then, He saith, that because for the future I shall not be with you, that you are therefore forsaken: for My name will be a still greater protection to you than My presence: Hitherto have ye asked nothing in My Name: ask, and ye shall receive, that your joy may be full.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Hom. lxxix