Luke 17:8

(de Quæst. Ev. ubi sup.) While His servants also are ministering, that is, preaching the Gospel, our Lord is eating and drinking the faith and confession of the Gentiles. It follows, And afterward thou shall eat and drink. As if He says, After that I have been delighted with the work of thy preaching, and refreshed myself with the choice food of thy compunction, then at length shalt thou go, and feast thyself everlastingly with the eternal banquet of wisdom.

He bids make ready wherewith he may sup, that is, after the labours of public discourse, He bids him humble himself in self-examination. With such a supper our Lord desires to be fed. But to gird one's self is to collect the mind which has been enfolded in the base coil of fluctuating thoughts, whereby its steps in the cause of good works are wont to be entangled. For he who girds up his garments does so, that in walking he may not be tripped up. But to minister unto God, is to acknowledge that we have no strength without the help of His grace.

For we know that no one sits down before he has first passed over. Moses indeed also passed over, that he might see a great sight. Since then thou not only sayest to thy servant, Sit down to meat, but requirest from him another service, so in this life the Lord does not put up with the performance of one work and labour, because as long as we live we ought always to work. Therefore it follows, And will not rather say, Make ready wherewith I may sup.

Our Lord teaches us that it is no more than the just and proper right of a master to require, as their bounden duty, subjection from servants, adding, Doth he thank that servant because he did the things that were commanded him? I trow not. Here then is the disease of pride cut away. Why boastest thou thyself? Dost thou know that if thou payest not thy debt, danger is at hand, but if thou payest, thou doest nothing thankworthy? As St. Paul says, For though I preach the Gospel I have nothing to glory of, for necessity is laid upon me, yea, woe is unto me if I preach not the Gospel. (1 Cor. 9:16.) Observe then that they who have rule among us, do not thank their subjects, when they perform their appointed service, but by kindness gaining the affections of their people, breed in them a greater eagerness to serve them. So likewise God requires from us that we should wait upon Him as His servants, but because He is merciful, and of great goodness, He promises reward to them that work, and the greatness of His loving-kindness far exceeds the labours of His servants.

Because faith makes its possessor a keeper of God's commandments, and adorns him with wonderful works; it would seem from thence that a man might thereby fall into the sin of pride. Our Lord therefore forewarned His Apostles by a fit example, not to boast themselves in their virtues, saying, But which of you having a servant plowing, &c.