Luke 17:34

The two in one bed are those who preach alike the Lord's rest after His passion, about which heretics and catholics have the same confession; but because the Catholic Faith preaches the unity of the Godhead of the Father and the Son, and the false creed of the heretics impugns that, therefore shall the Divine judgment decide between the confession of these two by taking one and leaving the other.

He rightly says, night, for Antichrist is the hour of darkness, because he pours a dark cloud over the minds of men while he declares himself to be Christ. But Christ as lightning shines brightly, that we may be able to see in that night the glory of the resurrection.

(de Qu. Ev. lib. ii. qu. 41.) Or He says, in that night, meaning in that tribulation. (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. (de Con. Ev. l. ii. c. 7.) these things which Luke has given us in a different place from Matthew, he either relates by anticipation, so as to mention beforehand what was afterwards spoken by our Lord, or he means us to understand that they were twice uttered by Him.

For by the two men in one bed, He seems to denote the rich who repose themselves in worldly pleasures, for a bed is a sign of rest. But not all who abound in riches are wicked, but if one is good and elect in the faith, he will be taken, but another who is not so will be left. For when our Lord descends to judgment, He will send His Angels, who while they leave behind on the earth the rest to suffer punishment, will bring the holy and righteous men to Him; according to the Apostle's words, We shall be caught up together in the clouds to meet Christ in the air. (1 Thess 4:17.)

Or He teaches us the suddenness of Christ's coming, which we are told will be in the night. And having said that the rich can scarcely be saved, He shows that not all the rich perish, nor all the poor are saved.