John 21:16

When then having been asked once and again, he called Him to witness who knoweth the secrets of the heart, and then was asked even a third time, he was troubled, fearing a repetition of what had happened before, (for then, having been strong in assertion, he was afterwards convicted,) and therefore he again betaketh himself to Him. For the saying, "Thou knowest all things," meaneth, "things present, and things to come." Seest thou how he had become better and more sober, being no more self-willed, or contradicting? For on this account he was troubled, "lest perchance I think that I love, and love not, as before when I thought and affirmed much, yet I was convicted at last." But Jesus asketh him the third time, and the third time giveth him the same injunction, to show at what a price He setteth the care of His own sheep, and that this especially is a sign of love towards Him.

(Hom. lxxxviii. 1) That which most of all attracts the Divine love is care and love for our neighbour. Our Lord passing by the rest, addresses this command to Peter: he being the chief of the Apostles, the mouth of the disciples, and head of the college. Our Lord remembers no more his sin in denying Him, or brings that as a charge against him, but commits to him at once the superintendence over his brethren. If thou lovest Me, have rule over thy brethren, show forth that love which thou hast evidenced throughout, and that life which thou saidst thou wouldest lay down for Me, lay down for the sheep. He saith to him again the second time, Simon, son of Jonas, lovest thou Me? He saith unto Him, Yea, Lord; Thou knowest that I love Thee.

There are indeed many other things which are able to give us boldness towards God, and to show us bright and approved, but that which most of all brings good will from on high, is tender care for our neighbor. Which therefore Christ requireth of Peter.

(Tract. cxxii) Well doth He say to Peter, Lovest thou Me (ἀγαπᾶς diligis), and Peter answer, Amo Te (φελῶ amo), and our Lord replies again, Feed My lambs. Whereby, it appears that amor and dilectio are the same thing: especially as our Lord the third time He speaks does not say, Diligis Me, but Amas Me. He saith unto him the third time, Simon, son of Jonas, lovest thou Me? A third time our Lord asks Peter whether he loves Him. Three confessions are made to answer to the three denials; that the tongue might show as much love as it had fear, and life gained draw out the voice as much as death threatened. (Tract. cxxiii) They who feed Christ's sheep, as if they were their own, not Christ's, show plainly that they love themselves, not Christ; that they are moved by lust of glory, power, gain, not by the love of obeying, ministering, pleasing God. Let us love therefore, not ourselves, but Him, and in feeding His sheep, seek not our own, but the things which are His. For whoso loveth himself, not God, loveth not himself: man that cannot live of himself, must die by loving himself; and he cannot love himself, who loves himself to his own destruction. Whereas when He by Whom we live is loved, we love ourselves the more, because we do not love ourselves; because we do not love ourselves in order that we may love Him by Whom we live. (Serm. Pass.) But unfaithful servants arose, who divided Christ's flock, and handed down the division to their successors: and you hear them say, Those sheep are mine, what seekest thou with my sheep, I will not let thee come to my sheep. If we call our sheep ours, as they call them theirs, Christ hath lost His sheep.

"So when they had dined, He saith to Simon Peter, Simon, [son] of John, lovest thou me more than these? He saith unto Him, Yea, Lord; Thou knowest that I love Thee. He saith unto him, Feed my lambs." To the threefold denial there is now appended a threefold confession, that his tongue may not yield a feebler service to love than to fear, and imminent death may not appear to have elicited more from the lips than present life. Let it be the office of love to feed the Lord's flock, if it was the signal of fear to deny the Shepherd. Those who have this purpose in feeding the flock of Christ, that they may have them as their own, and not as Christ's, are convicted of loving themselves, and not Christ, from the desire either of boasting, or wielding power, or acquiring gain, and not from the love of obeying, serving, and pleasing God. Against such, therefore, there stands as a wakeful sentinel this thrice inculcated utterance of Christ, of whom the apostle complains that they seek their own, not the things that are Jesus Christ's. For what else mean the words, "Lovest thou me? Feed my sheep," than if it were said, If thou lovest me, think not of feeding thyself, but feed my sheep as mine, and not as thine own; seek my glory in them, and not thine own; my dominion, and not thine; my gain, and not thine; lest thou be found in the fellowship of those who belong to the perilous times, lovers of their own selves, and all else that is joined on to this beginning of evils?