The Debt Of Love

Quantum cupio sanctitati vestrae debitum reddere de caritate sermonem, tantum me caritatis magis fieri video debitorem; nec invenio qualiter possim verbis explicare praeconium caritatis, in qua sic debemus, quandiu in hoc saeculo vivimus, crescere invicem diligendo, sicut eam jubemur semper debere reddendo. Beatus namque apostolus Paulus, dum nos omnibus debitis praecepisset absolvi, solo nos mutuae caritatis debito semper voluit detineri, dicens: Nemini quidquam debeatis, nisi ut invicem diligatis. Ista est apostolicae summa doctrinae. Haec sunt consulta caritatis paternae, ut nemini quidquam debeamus, nisi ut invicem diligamus. Cum ergo audimus, ut nemini quidquam debeamus, non in hoc verbo remaneamus, sed audiamus et faciamus quod sequitur, ut nos invicem diligamus: et inveniemus sanctam caritatem, quam semper debendo reddamus, et reddendo salubriter debeamus. Magna res caritas est, dilectissimi fratres, quam docente Apostolo sic jubemur semper reddere, ut eam nihilominus jubeamur sine intermissione debere. O caritatis debitum bonum, debitum sanctum, debitum coelestibus refertum commodis, debitum sempiternis plenum omnino divitiis! Sanctus Fulgentius Ruspensis, Sermo V, De caritate Dei ac Proximi Source: Migne PL 65.737b-d

As greatly as I desire to return the debt of your holiness with a sermon on love, just as greatly I see myself as a debtor to love, for I do not find I am able to explain the glory of love, in which, while we live in this world, we should grow in love to one another, because of which we are commanded always to return it. The blessed apostle Paul, while he commands us to dismiss all debts, wished us only to be detained by the one debt of mutual love, saying, 'Owe nothing to anyone, only that you love one another.' 1 This is the summit of the Apostolic teaching, this is the counsel of paternal love, that we should owe nothing to anyone, only that we love one another. When, therefore, we hear that we should owe nothing to anyone, we should not stop there, but we should hear and do what follows, that is, we should love one another, and thus we shall find heaven's love, which we should always return, and profitably return. Love is such a great thing, dearest brothers, which the Apostle teaches us we should always return, so that we are commanded to it without pause. O good debt of love, o holy debt, o debt that bears off to heaven, debt full of eternal riches. Saint Fulgentius of Ruspe, from Sermon 5, On the Love of God and one's Neighbour 1 Rom 13.8