“Now are we sure that thou knowest all things, and needest not that any man should ask thee: by this we believe that thou camest forth from God.”
John 16:30 — Greek Interlinear
Church Fathers on John 16:30
The disciples were so refreshed with the thought of being in favor with the Father, that they say they are sure He knows all things: His disciples said to Him, Now you speak plainly, and speak no proverb.
But why do they say so, when the hour in which He was to speak without proverbs was yet future, and only promised? Because, our Lord’s communications still continuing proverbs to them, they are so far from understanding them, that they do not even understand their not understanding them.
They believe that He came forth from God, because He does the works of God. For whereas our Lord had said both, I came forth from the Father, and, I am come into the world from the Father, they testified no wonder at the latter words, I am come into the world, which they had often heard before. But their reply shows a belief in and appreciation of the former, I came forth from the Father. And they notice this in their reply: By this we believe that you came forth from God;…