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No Man Can Serve Two Masters

A reflection for the Fourteenth Sunday after Pentecost — Dominica XIV post Pentecosten, II classis (30 August)

The Introit of this Sunday’s Mass is a single upward glance: Protector noster, aspice, Deus, et respice in faciem Christi tui: quia melior est dies una in atriis tuis super millia — “Behold, O God our protector, and look on the face of Thy Christ: for better is one day in Thy courts above thousands” (Ps. 83:10-11). Before a word is said about flesh or Spirit, about God or mammon, the Church has already made her choice and announced it in song: one day in the courts of the Lord outweighs thousands anywhere else. The whole Mass that follows is an anatomy of that preference — what it costs, what wars against it, and what it receives. The Epistle names the war within us; the Gospel names the rival master outside us; and both converge on a single, indivisible allegiance.

I. Walk in the Spirit

The Epistle (Gal. 5:16-24) is St. Paul at his most diagnostic. “Walk in the spirit, and you shall not fulfil the lusts of the flesh. For the flesh lusteth against the spirit: and the spirit against the flesh; for these are contrary one to another: so that you do not the things that you would.”

St. Augustine, expounding this epistle, insists that the Apostle is not describing a war between the soul and the body as if the body were evil — that is the error of the Manichees he had once followed — but a war between two loves within the one man: the disordered desire that remains even in the baptized, and the charity poured into the heart by the Holy Ghost. The battle itself, Augustine observes, is the condition of the wayfarer; its presence is not a sign of God’s absence but of grace already at work, for where the Spirit did not dwell there would be no contest at all, only surrender (cf. Expositio Epistulae ad Galatas, on 5:17).

Then Paul opens the two inventories, and the grammar itself preaches. The works of the flesh — opera carnis — are plural, a rabble: uncleanness, enmities, contentions, emulations, wraths, quarrels, dissensions, sects, envies. The fruit of the Spirit — fructus Spiritus — is singular: charity, joy, peace, patience, benignity, goodness, longanimity, mildness, faith, modesty, continency, chastity. St. Jerome, commenting on this passage, marks the distinction: vice fragments and multiplies, each sin quarrelling even with its fellow sins, while the life of the Spirit, however many its manifestations, is one thing — as a single tree bears a single fruit in many clusters (cf. Commentarius in Epistolam ad Galatas, on 5:22). St. Thomas receives and orders the teaching: the twelve fruits are the acts that proceed from the virtues under the sweet motion of the Holy Ghost, and charity stands first because it is the form and root of them all (cf. Summa Theologiae I-II, q. 70).

Notice, finally, how the passage ends: “And they that are Christ’s have crucified their flesh, with the vices and concupiscences.” Not suppressed, not negotiated with — crucified. Chrysostom presses the word: the Apostle chose the instrument of the Lord’s own death to describe the Christian’s daily work, so that no one might imagine the spiritual life to be a gentle preference rather than a putting to death (cf. In Epistolam ad Galatas commentarius, on 5:24). The Epistle thus leaves us with a question it does not answer: what makes a man able to sustain such a crucifixion? What must he believe about God in order to keep nothing back?

II. Your heavenly Father knoweth

The Gospel (Matt. 6:24-33) answers. It is taken from the Sermon on the Mount, and it begins with a sentence of terrible simplicity: Nemo potest duobus dominis servire. “No man can serve two masters… You cannot serve God and mammon.”

The Fathers are careful about what is and is not being condemned. St. Jerome notes that the Lord does not say no man can have riches, but no man can serve them: it is not possession that is forbidden but servitude, and the covetous man should hear himself named not as owner but as slave (cf. Commentarius in Evangelium Matthaei, on 6:24). St. Augustine adds a darker precision: mammon — a Punic and Hebrew word for wealth — has a master of its own, and he who consents to serve riches finds that he has taken service, in fact, under him whom Our Lord calls the prince of this world (cf. De Sermone Domini in Monte, lib. II). And St. John Chrysostom draws out the psychology: Christ says a man will “hate the one, and love the other” not because wealth is strong but because the divided heart is impossible; the attempt to keep both allegiances does not produce two loyalties but two contempts (cf. In Matthaeum homiliae, hom. 21).

Then comes the passage that has consoled the poor of Christ for twenty centuries: “Behold the birds of the air, for they neither sow, nor do they reap… Consider the lilies of the field, how they grow: they labour not, neither do they spin.” Chrysostom observes the Lord’s method of arguing from the less to the greater: He who gave the greater things unasked — life itself, the body, the soul — will not withhold the lesser things that sustain them; and He points us to birds and lilies rather than to Elias fed by ravens or Israel fed with manna, because irrational and even inanimate creatures shame our anxiety more sharply than any miracle could (cf. In Matthaeum homiliae, hom. 21-22). Augustine is equally careful about what “take no thought” does not mean: the Lord forbids not labour — the Apostle wrought with his hands — but solicitudo, the anxious care that makes food and raiment the end for which we serve God rather than helps along the way to Him (cf. De Sermone Domini in Monte, lib. II).

The whole Gospel then gathers itself into one imperative and one promise: Quaerite ergo primum regnum Dei, et iustitiam eius: et haec omnia adiicientur vobis. “Seek ye therefore first the kingdom of God, and his justice, and all these things shall be added unto you.” Jerome fastens on the last word: adiicientur — added, thrown in. Temporal things are not the wage of seeking God; they are the incidentals of it, given over and above to those who have stopped demanding them (cf. Commentarius in Evangelium Matthaei, on 6:33). The order of the seeking is everything. First the Kingdom; the rest follows, or does not, as the Father who knoweth what we need sees fit — and either way the servant of one Master has lost nothing.

III. One allegiance: the Epistle and Gospel together

Read together, the two lessons form a single teaching, and the old Thomistic frame of exitus and reditus — all things going forth from God and all things led back to Him — lets us see its shape.

The flesh, in St. Paul’s sense, is the exitus gone wrong: the creature, sent forth from God, curving back upon itself and upon lower things, multiplying works because it has lost the unity of its end. Mammon is simply the flesh’s economy — the organization of a whole life around the goods that were meant to be added, not sought. This is why the Gospel’s two masters and the Epistle’s two combatants are the same war seen from without and from within. The man who serves mammon has not merely made a bad investment; he has enlisted, and the works of the flesh are his service record.

The Spirit is the reditus: the Holy Ghost conducting the creature back to the Father, and the singular fruit of that return is the restored unity of a heart that seeks first — and therefore seeks one. The birds and the lilies are not sentimental decoration in this argument. They are creatures that have never left the order of Providence; they stand in the Gospel as the unfallen exitus stands before the fallen one, and Our Lord points to them as to a memory of what trust looks like. What they possess by nature — an existence wholly received, moment by moment, from the Father’s hand — we are to possess by grace and by the daily crucifixion of the flesh: which is to say, by living as if haec omnia adiicientur were true. Because it is.

And the Church, singing melior est dies una in atriis tuis super millia, shows us where this trust is learned. The Holy Sacrifice is the one place on earth where the exchange of the Gospel is enacted rather than merely described: we bring bread and wine — haec omnia, the goods of this world in miniature — and surrender them first, and receive back the Kingdom itself upon the altar. Every Mass is a rehearsal of quaerite primum.

IV. A word for practice

The Sunday’s teaching is not an invitation to imprudence. It is an ordering of loves, and it can be practiced concretely this week.

First, name your mammon. Not “money” in the abstract, which costs nothing to admit, but the particular temporal good — the salary, the security, the acquisition, the account balance — whose imagined loss can make you anxious faster than the thought of losing God can make you grieve. Speed of anxiety is a reliable diagnostic of service.

Second, take the two lists of the Epistle to your examination of conscience. Read the works of the flesh slowly — not only the sins of impurity but enmities, contentions, emulations, envies, which are the respectable works of the flesh — and then read the twelve fruits, and ask which one is most visibly missing from your ordinary day. Aim the week’s effort there.

Third, perform one deliberate act of trust in Providence: an alms given from what you had mentally reserved, a worry explicitly handed over in prayer and not taken back, a decision made for the Kingdom first when the calculation argued otherwise. Trust, like the flesh, is crucified or strengthened by acts, not sentiments.

Suggested prayer: the Collect of the day — Custodi, Domine, quaesumus, Ecclesiam tuam propitiatione perpetua — asking God to keep His Church by His abiding mercy, since without Him our mortal frailty must fall; or simply the petition of the Pater Noster said slowly at its hinge: Thy kingdom come — before ever we reach our daily bread, which the Lord has placed, deliberately, second.

Suggested devotion: the Glorious Mysteries of the Rosary, attending especially to the Ascension — the Head gone before us into the courts where one day is better than thousands — and the Descent of the Holy Ghost, by whom alone we walk in the Spirit.


If you wish to go deeper, this Sunday opens onto two of our paths. The Theology and Doctrine path treats the gifts and fruits of the Holy Ghost in the Thomistic order — how the fruits differ from the virtues and the beatitudes, and why charity heads the list. The Spiritual Practices path takes up abandonment to Divine Providence: what “take no thought” requires, what it forbids, and how the saints distinguished holy trust from presumption. Either would be a fitting continuation.

Fiat voluntas tua, sicut in caelo et in terra.

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