S. AURELII AUGUSTINI HIPPONENSIS EPISCOPI IN EPISTOLAM JOANNIS AD PARTHOS TRACTATUS DECEM .
TRACTATUS III. De eo quod sequitur, Pueri, novissima hora est usque ad id, Cap.
TRACTATUS IV. De eo quod sequitur, Et verax est, et non est mendax usque ad id, Cap. et cap.
TRACTATUS V. In id quod sequitur, Omnis qui natus est ex Deo, non facit peccatum usque ad id, Cap.
TRACTATUS VI. In illud, Et in hoc cognoscimus quia ex veritate sumus usque ad id, etc. Cap. et cap.
TRACTATUS VII. Ab eo quod sequitur, Jam vos ex Deo estis filioli usque ad id, Cap.
TRACTATUS VIII. De eo quod sequitur, Si diligamus invicem, Deus in nobis manebit usque ad id, Cap.
TRACTATUS IX. De eo quod sequitur, In hoc perfecta est dilectio in nobis usque ad id, Cap.
11. “In this know we love:”288 1 John iii. 16. he means, perfection of love, that perfection which we have bidden you lay to heart: “In this know we love, that He laid down His life for us: and we ought to lay down our lives for the brethren.” Lo here, whence that came: “Peter, lovest thou me? Feed My sheep.”289 John xxi. 15–19. For, that ye may know that He would have His sheep to be so fed by him, as that he should lay down his life for the sheep, straightway said He this to him: “When thou wast young, thou girdedst thyself, and walkedst whither thou wouldest: but when thou shalt be old, thou shalt stretch forth thy hands, and another shall gird thee, and carry thee whither thou wouldest not. This spake He,” saith the evangelist, “signifying by what death he should glorify God;” so that to whom He had said, Feed my sheep,” the same He might teach to lay down his life for His sheep.
11. In hoc cognoscimus dilectionem. Perfectionem dilectionis dicit, perfectionem illam quam commendavimus. In hoc cognoscimus dilectionem, quia ille pro nobis animam suam posuit: et nos debemus animas pro fratribus ponere. Ecce unde veniebat, Petre, amas me? pasce oves meas. Nam ut noveritis quia sic ab eo pasci volebat oves suas, ut animam suam pro ovibus poneret; hoc illi continuo dixit, «Cum juvenis esses, praecingebas te, et ibas quo volebas; cum autem fueris senior, alius te praecinget, et tollet te quo tu non vis. Hoc autem dixit,» ait Evangelista, «significans qua morte clarificaturus erat Deum» (Joan. XXI, 15 19): ut cui dixerat, «Pasce oves meas,» doceret eum ponere animam pro ovibus suis.