Nor by the earth; for it is his footstool: neither by Jerusalem; for it is the city of the great King.
Read Chapter 5
Cyril of Alexandria
AD 444
For this reason Jesus prohibits us from swearing by heaven or by the earth. This is in order that we should not give to creation an honor surpassing creation. Do not deify creation. Those who swear, he says, “swear by the greater,” as the apostle has said. And he also forbids swearing by Jerusalem. For the earthly Jerusalem is a type of the Jerusalem above, and God swears only by himself, that is, by his own glory. Wherefore, since the similarity transcends us, we are obliged to swear neither by ourselves nor by our own glory, for we are not free like God but are subject to God’s authority.
The Anabaptists and other sectarists, following the letter, and not the spirit of the Scripture, and walking in the footsteps of their predecessors, the Waldenses, and the Pelagians, will allow of no oath to be lawful, not even before a judge. (Bristow)
But mark, I pray you, on what ground He magnifies the elements; not from their own nature, but from God's relation to them, such as it had been in condescension declared. For because the tyranny of idolatry was great, that the elements might not be thought worthy of honor for their own sake, He has assigned this cause, which we have mentioned, which again would pass on to the glory of God. For He neither said, because Heaven is beautiful and great, nor, because earth is profitable; but because the one is God's throne, the other His footstool; on every side urging them on towards their Lord.
Since the Jews had heard God say, "Heaven is My throne, and earth is My footstool" (Is. 66:1) they would swear by such things. In prohibiting them from swearing by these things, the Lord does not say, "Do not swear by them because heaven is good and great, and earth is useful." Instead He says, "Do not swear by them because the one is the throne of God and the other is His footstool," so that idolatry would not occur. For they might make gods out of those elements by which they swore, which indeed had happened before.
