Nicene and Post-Nicene Fathers, Vol. II:
City of God: Chapter 42

Chapter 42.—By What Dispensation of God’s Providence the Sacred Scriptures of the Old Testament Were Translated Out of Hebrew into Greek, that They Might Be Made Known to All the Nations.

One of the Ptolemies, kings of Egypt, desired to know and have these sacred books.  For after Alexander of Macedon, who is also styled the Great, had by his most wonderful, but by no means enduring power, subdued the whole of Asia, yea, almost the whole world, partly by force of arms, partly by p. 386 terror, and, among other kingdoms of the East, had entered and obtained Judea also, on his death his generals did not peaceably divide that most ample kingdom among them for a possession, but rather dissipated it, wasting all things by wars.  Then Egypt began to have the Ptolemies as her kings.  The first of them, the son of Lagus, carried many captive out of Judea into Egypt.  But another Ptolemy, called Philadelphus, who succeeded him, permitted all whom he had brought under the yoke to return free; and more than that, sent kingly gifts to the temple of God, and begged Eleazar, who was the high priest, to give him the Scriptures, which he had heard by report were truly divine, and therefore greatly desired to have in that most noble library he had made.  When the high priest had sent them to him in Hebrew, he afterwards demanded interpreters of him, and there were given him seventy-two, out of each of the twelve tribes six men, most learned in both languages, to wit, the Hebrew and Greek and their translation is now by custom called the Septuagint.  It is reported, indeed, that there was an agreement in their words so wonderful, stupendous, and plainly divine, that when they had sat at this work, each one apart (for so it pleased Ptolemy to test their fidelity), they differed from each other in no word which had the same meaning and force, or, in the order of the words; but, as if the translators had been one, so what all had translated was one, because in very deed the one Spirit had been in them all.  And they received so wonderful a gift of God, in order that the authority of these Scriptures might be commended not as human but divine, as indeed it was, for the benefit of the nations who should at some time believe, as we now see them doing.