Pannenberg argues that a denial of Jesus’s role as the cause of salvation is not so much toleration of religious pluralism as it is indifference.[26] He agrees with John Hick and others who argue that the rejection of Jesus’s function as the unique cause of salvation is closely tied to the notion of his identity as the incarnate Son of God. However, he differs from them in asserting that the unique divinity of Christ is an essential and irreducible truth claim of Christianity—its falsification, for Pannenberg, means that Christianity is irrational and untenable.