Taken from If God Exists Why is He Hiding? (Crossing the Threshold of Faith):
Journalist:"Why doesn’t [God] reveal Himself more clearly?"
Pope John Paul II: "It is precisely in this birth, and then through the Passion, the Cross, and the Resurrection that the self-revelation of God in the history of man reached its zenith — the revelation of the invisible God in the visible humanity of Christ."How could God reveal any more of himself than he has in Christ? Recall Luke’s parable of Lazarus and the rich man. Once the rich man has begun experiencing the torments of his afterlife, he wants to send Lazarus to the rich man’s brothers. But Abraham tells him that even should someone rise from the dead there are those (such as the brothers) who would not believe.
"Could God go further in His stooping down, in His drawing near to man…? In truth, it seems that He has gone as far as possible. He could not go further. In a certain sense God has gone too far! Didn’t Christ perhaps become ‘a stumbling block to Jews and foolishness to Gentiles’ (1Cor 1:23)? Precisely because He called God His Father, because He revealed Him so openly in Himself, He could not but elicit the impression it was too much… Man was not longer able to tolerate such closeness…"
We have all that we really need until Christ’s second coming. Is it too much?