St. Leo the Great’s famous Tome is a classic that shines forth with a remarkable beauty and vibrant clarity all these centuries later. Below are some of the best excerpts which I offer to readers as material for morning meditations or perhaps inspiration for your prayers today—focused on the Incarnation, they are especially timely as we approach the season of Advent. (Note: all of the below are quotes except for some of the introductory bolded phrases.)
■ ‘An unprecedented order': So without leaving his Father’s glory behind, the Son of God comes down from his heavenly throne and enters the depths of our world, born in an unprecedented order by an unprecedented kind of birth. In an unprecedented order, because one who is invisible at his own level was made visible at ours. The ungraspable willed to be grasped. Whilst remaining pre-existent, he begins to exist in time. The Lord of the universe veiled his measureless majesty and took on a servant’s form.
■ Humanity fully graced by divinity: So the proper character of both natures was maintained and came together in a single person. Lowliness was taken up by majesty, weakness by strength, mortality by eternity. To pay off the debt of our state, invulnerable nature was united to a nature that could suffer; so that in a way that corresponded to the remedies we needed, one and the same mediator between God and humanity the man Christ Jesus, could both on the one hand die and on the other be incapable of death.
■ ‘No failure of power’: He took on the form of a servant without the defilement of sin, thereby enhancing the human and not diminishing the divine. For that self-emptying whereby the Invisible rendered himself visible, and the Creator and Lord of all things chose to join the ranks of mortals, spelled no failure of power: it was an act of merciful favour. So the one who retained the form of God when he made humanity, was made man in the form of a servant. Each nature kept its proper character without loss; and just as the form of God does not take away the form of a servant, so the form of a servant does not detract from the form of God.
■ ‘A secret plan … by means of a hidden mystery’: It was the devil’s boast that humanity had been deceived by his trickery and so had lost the gifts God had given it; and that it had been stripped of the endowment of immortality and so was subject to the harsh sentence of death. He also boasted that, sunk as he was in evil, he himself derived some consolation from having a partner in crime; and that God had been forced by the principle of justice to alter his verdict on humanity, which he had created in such an honourable state. All this called for the realisation of a secret plan whereby the unalterable God, whose will is indistinguishable from his goodness, might bring the original realisation of his kindness towards us to completion by means of a more hidden mystery, and whereby humanity, which had been led into a state of sin by the craftiness of the devil, might be prevented from perishing contrary to the purpose of God.
Read the complete text here on EWTN.