From the early Church Fathers to now.
“Thou madest a way in the sea for thy horses, in the mud of many waters.”
“For a soul that is at peace quickly turns and corrects itself, even if it has sinned before, and Christ ascends to it more fully and deigns to rule it, to which it is said: "Mount your horses, your chariot of health." And elsewhere: "I have sent forth your horses to Tharsis." Behold the horses of Christ. Thus, Christ ascends his horses, the Word of God ascends to holy souls.”
“70: And you led your horses into the sea, disturbing the many waters. After God sent death upon the heads of the unjust, and the heads of the mighty were brought down in astonishment, and you broke them in the sea (for it is written in the Psalms: You have broken the heads of the dragons (Psalm 73:4)), with the princes slain, or broken, and the strong one overcome, they came to his house and all his possessions were plundered (Mark 13). But the vase and the strong house and the prince's belongings, what else can be interpreted except the sea of this world, in which the dragon dwells? Therefore, God, the outstanding knight and chief charioteer, adds his horses, namely angels, and sublime powers above the sea of this world, to disturb the many waters, demons and contrary powers. But if we want to interpret it as the coming of Christ, according to what is written in the Apocalypse (Chapter 19), that the word of God sits on a white horse and the whole army follows him on white horses, we will see how Christ ascended among his apostles, saying to them: Behold, I am with you all days, even to the consummation of the world; and: Go, therefore, and teach all nations, baptizing them, and the rest (Matthew 28). And later he mounted a white horse, which I believe to be none other than the apostle Paul, upon which he rode and traveled around the whole world. Now, the word of God ascended upon his horses, so that many waters, that is, many people who were previously in the sea and held captive by the dragon, were troubled. For wide is the gate and broad is the way that leads to destruction (Matthew 7:13), and they were troubled, abandoning their initial error: then they were disturbed and received the approaching rider. Certainly, the hordes of demons we have spoken of above should not rule over the sea in such a way; rather, they should be disturbed and retreat, fearing the wounds of a fighting knight. And I hope that the word of God will also rise in me and kill, through the spear of my mouth, the one who reigns in the waters, so that the waters that were subjected to them will be disturbed unto the destruction of the king, and offer their necks to my knight, and when brought together in one chariot, we may become the Cherubim of the Lord, which is interpreted as a multitude of knowledge. For never before has a charioteer been so well composed and so adorned, as in those who are connected by the multitude of knowledge and the reins of wisdom among themselves.”
“You sent your horses into the sea, stirring up many waters. For the sea, indeed, means the world; the horses of God, the holy preachers; the many waters, the peoples of the nations. When the horses of God were sent into the sea, the many waters were stirred up, because when the heralds of the word were scattered into the world, the hearts of the nations were disturbed, some to believe and receive the sacrament of faith, others to contradict or even persecute the heralds of this faith. Hence the Psalmist aptly says: "All who saw them were troubled, and every man feared, and they declared the works of God and understood His deeds" (Ps. 63:9). For although all were troubled, not all feared and declared the works of God, but whosoever remained rational men; and those who were estranged from human reason were compared to senseless animals and became like them. Although such people were disturbed and moved by the virtues of the saints, they neither wanted to fear God nor to declare or understand His deeds. Furthermore, it is aptly said of these horses, namely the holy preachers, earlier: "You will ascend, you will ascend on your horses," and now it is added about the same: "You sent your horses into the sea," so that from both sentences it may be gathered that the Lord sent preachers into the world in such a way that, while they preached, He was never absent, but like a charioteer to horses, He was always present to guide their minds.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.