Alcuin of York — as excerpted in the Catena Aurea on John 16:16-22

“Or thus, It will be a little time during which ye will not see Me, i. e. the three days that He rested in the grave; and again, it will be a little time during which ye shall see Me, i. e. the forty days of His appearance amongst them, from His Passion to His ascension. And ye shall see Me for that little time only, Because I go to the Father; for I am not going to stay always in the body here, but, by that humanity which I have assumed to ascend to heaven. It follows; Now Jesus knew that they were desirous to ask Him, and said unto them, Do ye enquire among yourselves of that I said, A little while, and ye shall not see Me: and again, a little while, and ye shall see Me? Verily, verily, I say unto you, That ye shall weep and lament. Their merciful Master, understanding their ignorance and doubts, replied so as to explain what He had said.”