Theophylact of Ohrid — as excerpted in the Catena Aurea on Mark 13:32-37

“The Lord wishing to prevent His disciples from asking about that day and hour, says, But of that day and that hour knoweth no man, no, not the angels which are in heaven, neither the Son, but the Father. For if He had said, I know, but I will not reveal it to you, He would have saddened them not a little; but He acted more wisely, and prevents their asking such a question, lest they should importune Him, by saying, neither the Angels nor I.”