The Ambigua is a series of commentaries by St. Maximus on other patristic writings—mostly those of St. Gregory the Theologian—in which Maximus purports to explain the meaning of certain ambiguous (hence the title) passages, but usually ends up riffing off of them to draw out and elaborate his own theology. Here is a sample of some choice quotations.
On the union of the divine and human natures of Christ, without division or confusion, in the one hypostasis of the Logos:
“As God, [Christ] was the motivating principle of His own humanity, and as man He was the revelatory principle of His own divinity. One could say, then, that He experienced suffering in a divine way, since it was voluntary (and He was not mere man); and that He worked miracles in a human way, since they were accomplished through the flesh (for He was not naked God). Therefore His sufferings are wondrous, for they have been renewed by the natural divine power of the one who suffered. So too are His wonders wedded to passibility, for they were completed by the naturally passible power of the flesh of the one who worked them. . . . as God having become man, He lived His life among us according to a certain new theandric energy.” – Ambiguum 5
“[This theandric energy] is not the natural manifestation of either divinity or humanity alone, nor is it that of a composite nature occupying some kind of borderland between the two extremes. Instead it is the energy that belongs most naturally to ‘God made man,’ to Him who became perfectly incarnate.” —Ambiguum 5
A wonderfully terse distillation of Christ’s meaning and identity, which Maximus delivers at the end of Ambiguum 5 almost as a throwaway line:
“[Christ] is the Father of the age to come, who begets in the Spirit through love and knowledge ‘those who fill the world above.’”
Maximus on the logoi, the eternal reasons or purposes, eternally contained in God, that constitute the origin and end (for the two are one and the same) of each created being:
“From all eternity, [the Logos] contained within Himself the preexisting logoi of created beings. When, in His goodwill, He formed out of nothing the substance of the visible and invisible worlds, He did so on the basis of these logoi. By his word (logos) and His wisdom He created and continues to create all things—universals as well as particulars—at the appropriate time.” —Ambiguum 7
The logos of rational beings like humans is a movement “from their natural beginning in being, toward a voluntary end in well-being. For the end of the motion of things that are moved is to rest within the eternal well-being itself, just as their beginning was being itself, which is God, who is the giver of being and the bestower of the grace of well-being.”
Maximus brilliantly articulating the logos of each human being, which is to become divinized by voluntarily adopting a likeness, through virtue, to the uncreated Word from which it derives its being and from which it naturally bears its image:
“The essence in every virtue is the one Logos of God—and this can hardly be doubted since the essence of all the virtues is our Lord, Jesus Christ, as it is written: God made Him our wisdom, our righteousness, our holiness, and our redemption. These things are of course said about Him in an absolute sense, for He is Wisdom and Righteousness and Sanctification itself, and not in some limited sense, as is the case with human beings . . . Which is to say that anyone who through fixed habits participates in virtue, unquestionably participates in God, who is the substance of the virtues. For such a person freely and unfeignedly chooses to cultivate the natural seed of the Good, and has shown the end to be the same as the beginning, and the beginning to be the same as the end, or rather that the beginning and the end are one and the same. In this he is a genuine advocate of God, since the goal of each thing is believed to be its beginning and end, for it is from the beginning that he received being and participation in what is naturally good, and it is by conforming to this beginning through the inclination of his will and by free choice, that he hastens to the end, diligently adhering to the praiseworthy course that conducts him unerringly to his point of origin. Having completed his course, such a person becomes God, receiving from God to be God, for to the beautiful nature inherent in the fact that he is God’s image, he freely chooses to add the likeness to God by means of the virtues, in a natural movement of ascent through which he grows in conformity to his own beginning.” —Ambiguum 7