Augustine of Hippo
Catena Aurea · Lukasevangelium 17
I tell you, in that night there shall be two men in one bed; the one shall be taken, and the other shall be left. Two women shall be grinding together; the one shall be taken, and the other left. Two men shall be in the field; the one shall be taken, and the other left. And they answered and said unto him, Where, Lord? And he said unto them, Wheresoever the body is, thither will the eagles be gathered together.
(de Qu. Ev. ut sup) Or there are three classes of men here represented. The first is composed of those who prefer their ease and quiet, and busy not themselves in secular or ecclesiastical concerns. And this quiet life of theirs is signified by the bed. The next class embraces those who being placed among the people are governed by teachers. And such he has described by the name of women, because it is best for them to be ruled by the advice of those who are set over them; and he has described these as grinding at the mill, because in their hands revolves the wheel and circle of temporal concerns. And with reference to these matters he has represented them as grinding together, inasmuch as they give their services to the benefit of the Church. The third class are those who labour in the ministry of the Church as in the field of God. In each of these three classes then there are two sorts of men, of which the one abide in the Church and are taken up, the other fall away and are left.