What would these two prophets say to each other?
Both would agree on the weaknesses and faults in mankind – Isaiah, however, would recognize that man is not alone. Isaiah, with the penetrating insight of a true prophet, would recognize Nietzsche’s rebellion against God as a sign not of hatred of God or the idea of God but of his hunger for God.
‘Atheism, true ‘existential’ atheism burning with hatred of a seemingly unjust or unmerciful God, is a spiritual state; it is a real attempt to grapple with the true God.… Nietzsche, in calling himself Antichrist, proved thereby his intense hunger for Christ.’
– Fr. Seraphim Rose
Both would agree that without God, mankind has, can, and will sink to deplorable depths. The difference here is that Isaiah knows that God is not just an idea, a set of cultural values or a principle from which to derive morality that humanity no longer has need of, but rather the Living God who is calling for His people to return to Him.
Mankind may attempt to kill Him, as Nietzsche believes they have done, but Isaiah knows in a way Nietzsche does not that it doesn’t matter if humanity thinks they have killed God – God will not suffer defeat.