John Chrysostom — as excerpted in the Catena Aurea on John 10:14-21

“(Hom. lx. 1) Then that thou mayest not attribute to the Shepherd and the sheep the same measure of knowledge, He adds, As the Father knoweth Me, even so know I the Father: i. e. I know Him as certainly as He knoweth Me. This then is a case of like knowledge, the other is not; as He saith, No man knoweth who the Son is, but the Father. (Luke 10:23)”