Catena Aurea by St. Thomas Aguinas
Luke CHAP. 17
17:5–65. And the apostles said unto the Lord, Increase our faith.
6. And the Lord said, If ye had faith as a grain of mustard seed, ye might say unto this sycamine tree, Be thou plucked up by the root, and be thou planted in the sea; and it should obey you.
THEOPHYLACT. The disciples hearing our Lord discoursing of certain arduous duties, such as poverty, and avoiding offences, entreat Him to increase their faith, that so they might be able to follow poverty, (for nothing so prompts to a life of poverty as faith and hope in the Lord,) and through faith to guard against giving offences. Therefore it is said, And the Apostles said unto the Lord, Increase our faith.
GREGORY. (22. Mor. c. 21.) That is, that the faith which has already been received in its beginning, might go on increasing more and more unto perfection.
AUGUSTINE. (de Quæst. Ev. lib. 2. qu. 39.) We may indeed understand that they asked for the increase of that faith by which men believe in the things which they see not; but there is further signified a faith in things, whereby not with the words only, but the things themselves present, we believe. And this shall be, when the Wisdom of God, by whom all things were made, shall reveal Himself openly to His saints face to face.
THEOPHYLACT. But our Lord told them that they asked well, and that they ought to believe stedfastly, forasmuch as faith could do many things; and hence it follows, And the Lord said, If ye had faith as a grain of mustard seed, &c. Two mighty acts are here brought together in the same sentence; the transplanting of that which was rooted in the earth, and the planting thereof in the sea, (for what is ever planted in the waves?) by which two things He declares the power of faith.
CHRYSOSTOM. (Hom. 57. in Matt.) He mentions the mustard seed, because, though small in size, it is mightier in power than all the others. He implies then that the least part of faith can do great things. But though the Apostles did not transplant the mulberry tree, do not thou accuse them; for our Lord said not, You shall transplant, but, You shall be able to transplant. But they did not, because there was no need, seeing that they did greater things. (Hom. 32 in 1 ad Cor. c. 13:2.). But some one will ask, How does Christ say, that it is the least part of faith which can transplant a mulberry tree or a mountain, whereas Paul says that it is all faith which moves mountains? We must then answer, that the Apostle imputes the moving of mountains to all faith, not as though only the whole of faith could do this, but because this seemed a great thing to carnal men on account of the vastness of the body.
BEDE. Or our Lord here compares perfect faith to a grain of mustard seed, because it is lowly in appearance, but fervid in heart. But mystically by the mulberry tree, (whose fruit and branches are red with a blood-red colour,) is represented the Gospel of the cross, which, through the faith of the Apostles being uprooted by the word of preaching from the Jewish nation, in which it was kept as it were in the lineal stock, was removed and planted in the sea of the Gentiles.
AMBROSE. Or this is said because faith keeps out the unclean spirit, especially since the nature of the tree falls in with this meaning. For the fruit of the mulberry is at first white in the blossom, and being formed from thence grows red, and blackens as it gets ripe. The devil also having by transgression fallen from the white flower of the angelic nature and the bright beams of his power, grows terrible in the black odour of sin.
CHRYSOSTOM. The mulberry may be also compared to the devil, for as by the leaves of the mulberry tree certain worms are fed, so the devil, by the imaginations which proceed from him, is feeding for us a never dying worm; but this mulberry tree faith is able to pluck out of our souls, and plunge it into the deep.
17:7–10
7. But which of you, having a servant plowing or feeding cattle, will say unto him by and by, when he is come from the field, Go and sit down to meat?
8. And will not rather say unto him, Make ready wherewith I may sup, and gird thyself, and serve me, till I have eaten and drunken; and afterward thou shalt eat and drink?
9. Doth he thank that servant because he did the things that were commanded him? I trow not.
10. So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do.
THEOPHYLACT. 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.
AUGUSTINE. (de Quæst. Ev. l. 2. qu. 39.) Or else; To the many who understand not this faith in the truth already present, our Lord might seem not to have answered the petitions of His disciples. And there appears a difficulty in the connexion here, unless we suppose He meant the change from faith to faith, from that faith, namely, by which we serve God, to that whereby we enjoy Him. For then will our faith be increased when we first believe the word preached, next the reality present. But that joyful contemplation possesseth perfect peace, which is given unto us in the everlasting kingdom of God. And that perfect peace is the reward of those righteous labours, which are performed in the administration of the Church. Be then the servant in the field ploughing, or feeding, that is, in this life either following his worldly business, or serving foolish men, as it were cattle, he must after his labours return home, that is, be united to the Church.
BEDE. Or the servant departs from the field when giving up for a time his work of preaching, the teacher retires into his own conscience, pondering his own words or deeds within himself. To whom our Lord does not at once say, Go from this mortal life, and sit down to meat, that is, refresh thyself in the everlasting resting-place of a blessed life.
AMBROSE. 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.
BEDE. 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.
AUGUSTINE. (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.
CYRIL OF ALEXANDRIA. 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.
AMBROSE. Boast not thyself then that thou hast been a good servant. Thou hast done what thou oughtest to have done. The sun obeys, the moon submits herself, the angels are subject; let us not then seek praise from ourselves. Therefore He adds in conclusion, So likewise ye, when ye have done all good things, say, We are unprofitable servants, we have done that which it was our duty to do.
BEDE. Servants, I say, because bought with a price; (1 Cor. 6:20) unprofitable, for the Lord needeth not our good things, (Ps. 16:2) or because the sufferings of this present time are not worthy to be compared to the glory which shall be revealed in us. (Rom. 8:18.) Herein then is the perfect faith of men, when having done all things which were commanded them, they acknowledge themselves to be imperfect.