With regard to the chariots, we have seen elsewhere that angels are compared to horsemen; for these ride swiftly as it were through the whole world to execute what God commands them: so also whatever changes take place, they are called the chariots of God; for either angels are ready at hand to do anything in obedience to God, or the very events themselves are God’s chariots, that is, they are as it were swift heralds, who announce to us what was before unknown. Let us then know that all fortuitous events, as they are called by the unbelieving, are God’s chariots, are his messengers, who declare and proclaim what was before concealed from us. And there is not in this similitude or metaphor anything strained.
As to the color of the horses, interpreters, as I have already intimated, have toiled with great anxiety; and though I venture not to assert anything as certain, yet the probable conjecture is, that by the black and white horses are designated the Babylonians rather than the Persians, but for a purpose different from what interpreters have thought. For the reference must be to the Jews, when it is said, that black horses and then white horses went forth towards Babylon; for the Holy Spirit intimates, that liberty was given to the Chaldeans to harass the Jews and to fill all places with darkness. The blackness then of which the Prophet speaks signifies the calamities brought on the Jews. The whole of that time was dark, full of grief and sorrow, during which the Chaldeans possessed the oriental empire, and Babylon was the supreme seat of government or of the monarchy. A very different time afterwards succeeded, when the Babylonians were conquered and the Persian enjoyed the oriental empire. The color then was white, for the favor of God shone anew on the Jews, and liberty was immediately given then to return to their own country. We hence see that the Prophet rightly subjoins, that the color of the horses was white; for such was the favor shown to the Jews by the Persian, that the sun of joy arose on them, which exhilarated their hearts. But the Prophet makes no mention of the first chariot as going forth, and for this reason, as interpreters think, because the empire of Babylon was shell overthrown. But they are mistaken in this, as I have already hinted, because they refer not the colors to the state of God’s Church. Hence the Prophet, I doubt not, designedly omits the mention of the going forth of the first chariot, because the Jews had experienced the riding of God’s judgment in their own land, for they had been severely afflicted. As God then is wont to execute his judgment first on his own household, and as it is written, “judgment begins at his own house,” (1 Peter 4:17,) so he purposed to observe the same order in this case, that is, to chastise the sins of the chosen people before he passed over to the Chaldeans and other nations.