In his celebrated treatise On the Incarnation, Athanasius defends the divinity of Christ in a manner that has shaped Christian theology for centuries. This paper highlights his climactic apologetic for the divinity of Christ, namely, the transformed lives of those who believe in him. In his first volume Against the Gentiles, Athanasius exposes the folly of idolatry and consequent effect of a defaced image of God. A disfigured image in humanity increasingly conforms with a pattern of conduct corresponding to demons. In his second volume On the Incarnation, Athanasius explains that the Word of God came, being the image of the Father, in order that “the human being in the image might be recreated” (Inc. 13). Like a great work of art that has been damaged and can only be restored by the return of the original subject, Athanasius beautifully explains “in the same way the all-holy Son of the Father, being the Image of the Father, came to our place to renew the human being made according to himself” (Inc. 14). As his treatise develops, Athanasius argues that the transformed lives of all who believe irrefutably confirms Christ’s divinity and offers empirical evidence that the image of God has been restored. Adulterers become chaste. Murderers no longer take up the sword. Those overcome by cowardice become courageous. Those whose conduct was characterized by violence and aggression have laid aside cruelty. Athanasius concludes that humanity refashioned in the image of God “is the proof of the Savior’s divinity, that what human beings were unable to learn among idols, they have learned from him” (Inc. 52). His climactic apologetic fulfills the prophetic expectation that ‘the whole earth will be filled with the knowledge of God’ (Isa 11:9) and identifies Christ as the one who ‘disarming the principalities and powers, has triumphed on the cross’ (Col 2:15).