All God's works are ordained to the salvation of men and angels; and the order of his providence is this, as far as, by attention to the Holy Scriptures and the doctrine of the Fathers, we are able to discover and our weakness permits us to describe it.
God knew from all eternity that he could make an innumerable multitude of creatures with divers perfections and qualities, to whom he might communicate himself, and considering that amongst all the different communications there was none so excellent as that of uniting himself to some created nature, in such sort that the creature might be engrafted and implanted in the divinity, and become one single person with it, his infinite goodness, which of itself and by itself tends towards communication, resolved and determined to communicate himself in this manner. So that, as eternally there is an essential communication in God by which the Father communicates all his infinite and indivisible divinity to the Son in producing him, and the Father and the Son together producing the Holy Ghost communicate to him also their own singular divinity; -- so this sovereign sweetness was so perfectly communicated externally to a creature, that the created nature and the divinity, retaining each of them its own properties, were notwithstanding so united together that they were but one same person.
Now of all the creatures which that sovereign omnipotence could produce, he thought good to make choice of the same humanity which afterwards in effect was united to the person of God the Son; to which he destined that incomparable honour of personal union with his divine Majesty, to the end that for all eternity it might enjoy by excellence the treasures of his infinite glory. Then having selected for this happiness the sacred humanity of our Saviour, the supreme providence decreed not to restrain his goodness to the only person of his well-beloved Son, but for his sake to pour it out upon divers other creatures, and out of the mass of that innumerable quantity of things which he could produce, he chose to create men and angels to accompany his Son, participate in his graces and glory, adore and praise him for ever. And inasmuch as he saw that he could in various manners form the humanity of this Son, while making him true man, as for example by creating him out of nothing, not only in regard of the soul but also in regard of the body; or again by forming the body of some previously existing matter as he did that of Adam and Eve, or by way of ordinary human birth, or finally by extraordinary birth from a woman without man, he determined that the work should be effected by the last way, and of all the women he might have chosen to this end he made choice of the most holy virgin Our Lady, through whom the Saviour of our souls should not only be man, but a child of the human race.
Furthermore the sacred providence determined to produce all other things as well natural as supernatural in behalf of Our Saviour, in order that angels and men might, by serving him, share in his glory; on which account, although God willed to create both angels and men with free-will, free with a true freedom to choose evil or good, still, to show that on the part of the divine goodness they were dedicated to good and to glory, he created them all in original justice, which is no other thing than a most sweet love, which disposed, turned and set them forward towards eternal felicity.
But because this supreme wisdom had determined so to temper this original love with the will of his creatures that love should not force the will but should leave it in its freedom, he foresaw that a part, yet the less part, of the angelic nature, voluntarily quitting holy love, would consequently lose glory. And because the angelic nature could only commit this sin by an express malice, without temptation or any motive which could excuse them, and on the other hand the far greater part of that same nature would remain constant in the service of their Saviour, -- therefore God, who had so amply glorified his mercy in the work of the creation of angels, would also magnify his justice, and in the fury of his indignation resolved for ever to abandon that woful and accursed troop of traitors, who in the fury of their rebellion had so villanously abandoned him.
He also clearly foresaw that the first man would abuse his liberty and forsaking grace would lose glory, yet would he not treat human nature so rigorously as he determined to treat the angelic. It was human nature of which he had determined to take a blessed portion to unite it to his divinity. He saw that it was a feeble nature, a wind which goeth and returneth not, that is, which is dissipated as it goes. He had regard to the surprise by which the malign and perverse Satan had taken the first man, and to the greatness of the temptation which ruined him. He saw that all the race of men was perishing by the fault of one only, so that for these reasons he beheld our nature with the eye of pity and resolved to admit it to his mercy.
But in order that the sweetness of his mercy might be adorned with the beauty of his justice, he determined to save man by way of a rigorous redemption. And as this could not properly be done but by his Son, he settled that he should redeem man not only by one of his amorous actions, which would have been perfectly sufficient to ransom a million million of worlds: but also by all the innumerable amorous actions and dolorous passions which he would perform or suffer till death, and the death of the cross, to which he destined him. He willed that thus he should make himself the companion of our miseries to make us afterwards companions of his glory, showing thereby the riches of his goodness, by this copious, abundant, superabundant, magnificent and excessive redemption, which has gained for us, and as it were reconquered for us, all the means necessary to attain glory, so that no man can ever complain as though the divine mercy were wanting to any one.