John 14: 8, 9
Philip saith unto him, Lord, shew us the Father, and it sufficeth us. Jesus saith unto him, Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Shew us the Father?

“Philip here referred to some outward and visible manifestation of God. God had manifested himself in various ways to the prophets and saints of old, and Philip affirmed that if some such manifestation should be made to them they would be satisfied. It was right to desire evidence that Jesus was the Messiah, but such evidence “had been” afforded abundantly in the miracles and teaching of Jesus, and that “should” have sufficed them.” Barnes’ Notes on the Bible

“There is a world of sadness and tenderness, of suppressed pain and of grieved affection, in the first words of our Lord’s reply. ‘Have I been so long time with you, and yet hast thou not known Me, Philip?’ … This man was one of the first disciples, the little original band called by Christ Himself, and thus had been with Him all the time of His ministry, and the Master wonders with a gentle wonder that, before eyes that loved Him as much as Philip’s did, His continual self-revelation had been made to so little purpose.” MacLaren’s Expositions

So even in the presence of Jesus, this disciple questioned the evidence of God and the works that Jesus did. This brought to mind how the human mind tends to brush aside and not give credit to God for the good that occurs daily. When a healing occurs, whether it be little or big, sometimes one will suggest it would have happened anyway or doubt the presence of God because He can’t be seen humanly.

“WATCH- … “You are awake to the Truth, you see it, you realize it, and no mortal mind can hinder you from realizing it.” (Divinity Course and General Collectanea, p 40)