John 21:16

The lambs and the sheep of our Saviour here mean the faithful, who compose his Church, without any distinction of Jew or Gentile. St. Peter, by these words, is appointed to take charge of the whole flock, as being the chief and prince of the apostles. He is, in some manner, the pastor, not of the sheep only, but of the pastors themselves. They have each their own flock to look after; but to him is committed the care of all; he alone is the pastor of all. (Calmet) — Feed my sheep. Our Lord had promised the spiritual supremacy to St. Peter; (St. Matthew xvi. 19.) and here he fulfils that promise, by charging him with the superintendency of all his sheep, without exception; and consequently of his whole flock, that is, of his whole Church. (Challoner)

(3.) Three times Christ committed the care of his flock to Peter: Feed my lambs; feed my sheep; feed my sheep. [1.] Those whom Christ committed to Peter's care were his lambs and his sheep. The church of Christ is his flock, which he hath purchased with his own blood (Acts 20 28), and he is the chief shepherd of it. In this flock some are lambs, young and tender and weak, others are sheep, grown to some strength and maturity. The Shepherd here takes care of both, and of the lambs first, for upon all occasions he showed a particular tenderness for them. He gathers the lambs in his arms, and carries them in his bosom. Isa 40 11. [2.] The charge he gives him concerning them is to feed them. The word used in v. 15, 17, is boske, which strictly signifies to give them food; but the word used in v. 16 is poimaine, which signifies more largely to do all the offices of a shepherd to them: "Feed the lambs with that which is proper for them, and the sheep likewise with food convenient. The lost sheep of the house of Israel, seek and feed them, and the other sheep also which are not of this fold." Note, It is the duty of all Christ's ministers to feed his lambs and sheep. Feed them, that is, teach them; for the doctrine of the gospel is spiritual food. Feed them, that is, "Lead them to the green pastures, presiding in their religious assemblies, and ministering all the ordinances to them. Feed them by personal application to their respective state and case; not only lay meat before them, but feed those with it that are wilful and will not, or weak and cannot feed themselves." When Christ ascended on high, he gave pastors, left his flock with those that loved him, and would take care of them for his sake. [3.] But why did he give this charge particularly to Peter? Ask the advocates for the pope's supremacy, and they will tell you that Christ hereby designed to give to Peter, and therefore to his successors, and therefore to the bishops of Rome, an absolute dominion and headship over the whole Christian church as if a charge to serve the sheep gave a power to lord it over all the shepherds; whereas, it is plain, Peter himself never claimed such a power, nor did the other disciples ever own it in him. This charge given to Peter to preach the gospel is by a strange artifice made to support the usurpation of his pretended successors, that fleece the sheep, and, instead of feeding them, feed upon them. But the particular application to Peter here was designed, First, To restore him to his apostleship, now that he repented of his abjuration of it, and to renew his commission, both for his own satisfaction, and for the satisfaction of his brethren. A commission given to one convicted of a crime is supposed to amount to a pardon; no doubt, this commission given to Peter was an evidence that Christ was reconciled to him else he would never have reposed such a confidence in him. Of some that have deceived us we say, "Though we forgive them, we will never trust them;" but Christ, when he forgave Peter, trusted him with the most valuable treasure he had on earth. Secondly, It was designed to quicken him to a diligent discharge of his office as an apostle. Peter was a man of a bold and zealous spirit, always forward to speak and act, and, lest he should be tempted to take upon him the directing of the shepherds, he is charged to feed the sheep, as he himself charges all the presbyters to do, and not to lord it over God's heritage, 1 Pet 5 2, 3. If he will be doing, let him do this, and pretend no further. Thirdly, What Christ said to him he said to all his disciples; he charged them all, not only to be fishers of men (though that was said to Peter, Luke 5 10), by the conversion of sinners, but feeders of the flock, by the edification of saints.

Verses 15-19 Our Lord addressed Peter by his original name, as if he had forfeited that of Peter through his denying him. He now answered, Thou knowest that I love thee; but without professing to love Jesus more than others. We must not be surprised to have our sincerity called into question, when we ourselves have done that which makes it doubtful. Every remembrance of past sins, even pardoned sins, renews the sorrow of a true penitent. Conscious of integrity, Peter solemnly appealed to Christ, as knowing all things, even the secrets of his heart. It is well when our falls and mistakes make us more humble and watchful. The sincerity of our love to God must be brought to the test; and it behoves us to inquire with earnest, preserving prayer to the heart-searching God, to examine and prove us, whether we are able to stand this test. No one can be qualified to feed the sheep and lambs of Christ, who does not love the good Shepherd more than any earthly advantage or object. It is the great concern of every good man, whatever death he dies, to glorify God in it; for what is our chief end but this, to die to the Lord, at the word of the Lord?