John 14:9

Jesus saith unto him, have I been so long time with you,
&c.] Conversing familiarly with you, instructing you by my ministry, and performing so many miraculous works among you, for so long a time; see ( Hebrews 5:11 Hebrews 5:12 ) ;

and yet hast thou not known me, Philip?
Surely you cannot be so ignorant as this comes to; as you have seen me with your bodily eyes, as a man, you must, know that I am God by the doctrines I have taught you, and the miracles I have wrought among you: and

he that hath seen me;
not with the eyes of his body, but with the eyes of his understanding; he that has beheld the perfections of the Godhead in me:

hath seen the Father;
the perfections which are in him also; for the same that are in me are in him, and the same that are in him are in me: I am the very image of him, and am possessed of the same nature, attributes, and glory, that he is; so that he that sees the one, sees the other:

and how sayest thou then show us the Father?
such a request is a needless one, and betrays great weakness and ignorance.