4 If any one, however, advocating the cause of the Jews, do maintain that this new covenant consisted in the rearing of that temple which was built under Zerubbabel after the emigration to Babylon, and in the departure of the people from thence after the lapse of seventy years, let him know that the temple constructed of stones was indeed then rebuilt (for as yet that law was observed which had been made upon tables of stone), yet no new covenant was given, but they used the Mosaic law until the coming of the Lord; but from the Lord's advent, the new covenant which brings back peace, and the law which gives life, has gone forth over the whole earth, as the prophets said: “For out of Zion shall go forth the law, and the word of the Lord from Jerusalem; and He shall rebuke many people; and they shall break down their swords into ploughshares, and their spears into pruning-hooks, and they shall no longer learn to fight.” If therefore another law and word, going forth from Jerusalem, brought in such a [reign of] peace among the Gentiles which received it (the word), and convinced, through them, many a nation of its folly, then [only] it appears that the prophets spoke of some other person. But if the law of liberty, that is, the word of God, preached by the apostles (who went forth from Jerusalem) throughout all the earth, caused such a change in the state of things, that these [nations] did form the swords and war-lances into ploughshares, and changed them into pruning-hooks for reaping the grain, [that is], into instruments used for peaceful purposes, and that they are now unaccustomed to fighting, but when smitten, offer also the other cheek, then the prophets have not spoken these things of any other person, but of Him who effected them. This person is our Lord, and in Him is that declaration borne out; since it is He Himself who has made the plough, and introduced the pruning-hook, that is, the first semination of man, which was the creation exhibited in Adam, and the gathering in of the produce in the last times by the Word; and, for this reason, since He joined the beginning to the end, and is the Lord of both, He has finally displayed the plough, in that the wood has been joined on to the iron, and has thus cleansed His land; because the Word, having been firmly united to flesh, and in its mechanism fixed with pins, has reclaimed the savage earth. In the beginning, He figured forth the pruning-hook by means of Abel, pointing out that there should be a gathering in of a righteous race of men. He says, “For behold how the just man perishes, and no man considers it; and righteous men are taken away, and no man lays it to heart.” These things were acted beforehand in Abel, were also previously declared by the prophets, but were accomplished in the Lord's person; and the same [is still true] with regard to us, the body following the example of the Head.
Source: Adversus haereses (New Advent)