What the Bible says about Knowledge, Revealed
(From Forerunner Commentary)
The reason the rulers of the world did not understand (verse 8), did not put into the proper perspective, did not grasp what they saw in the Lord of glory is that God did not reveal to them who Jesus was, what He was doing, or why He was doing it. Those things cannot be discerned by physical means - eye, ear, nose, mouth, the senses - but they have to be revealed. A spiritual miracle must take place for a person to understand and to see these spiritual things.
John W. Ritenbaugh
Satan (Part 3)