Luke 22:29

And I appoint unto you a kingdom. As My Father has decreed and prepared for Me, through humility and the cross: through so many labours and sufferings: a kingdom heavenly and eternal, so do I also appoint the same unto you: that is, I decree, prepare, and, going to death I now appoint, as by my will, that through the same humility, cross, and suffering, you shall possess a like, nay, the same kingdom with Me in heaven; dispute not then who among you shall be greatest, but who shall be less, that each may study to surpass the other in low estate and humility, for whoever does this, shall be first and greatest in my kingdom.

Ver. 30. That ye may eat and drink at My table in My kingdom. As kings gave to their most intimate nobles a place at their own table, and made them companions of their banquets, but assigned to other and less famous nobles another table, so will I make you, My Apostles, the chief and foremost of My kingdom, and place you most nearly to Myself, and, as it were, at My table, and I will have you as the most intimate guests of My royal feasts. "In like manner," say Euthymius, Titus, and Theophylact, "He shows that the Apostles, as the first and most illustrious of His followers, should enjoy the highest honours with their immortal king. It is by catachresis that the pleasures and honours of the kingdom of heaven are often compared in Holy Scripture to banquets, and feasts of meat and drink, and to the first seats at table with kings; because carnal men understand these things best, but are unable to estimate spiritual ones, and because, as meat and drink are incorporated into ourselves and made our own, so, in heaven by the beautiful vision and His other glorious gifts, God will be incorporated into us, as it were, and will be made our own."

Ver. 31. And the Lord said, Simon, Simon, behold, Satan hath desired to have You. Sift that is vex, afflict, agitate, cast you down as wheat in a sieve that it may be cleared of chaff and dust. Satan in the same manner asked God to permit him to sift and afflict Job, and in some degree he obtained his end. He did the same again to Peter and the other Apostles, and again, in part succeeded, when he stirred up the Jews to seize Christ, for then the Apostles themselves fled in fear and were dispersed. The temptation is well compared to sifting and a sieve, because, as by means of the sieve the grains of wheat are separated from the chaff, and remain in the sieve, while the chaff is scattered to the wind, and dispersed in air, so the faithful and the saints in temptation remain constant, but the wicked fail and fly off.

But I have prayed for thee, that thy faith fail not. For thee, because I destine thee to be the head and chief of the Apostles and of My Church, that thy faith fail not in believing Me to be the Christ and the Saviour of the world. Observe that Christ in this prayer asked and obtained for Peter two especial privileges before the other Apostles: the first was personal, that he should never fall from faith in Christ; for Christ looked back to the sifting in the former verse, that is the temptation of His own apprehension when the other Apostles flew off from Him like chaff and lost their faith, and were dispersed, and fled into all parts. But Peter, although he denied Christ with his lips, at the hour foretold, and lost his love for Him, yet retained his faith. So S. Chrysostom (Hom. xxxviii.) on S. Matthew; S. Augustine (de corrept. et Grat. chap. viii.); Theophylact and others. This is possible but not certain, for F. Lucas and others think that Peter then lost both his faith and his love, from excessive perturbation and fear; but only for a short time, and so that his faith afterwards sprang up anew, and was restored with fresh vitality. Hence it is thought not to have wholly failed, or to have been torn up by the roots, but rather to have been shaken and dead for a time.

Another and a certain privilege was common to Peter with all his successors, that he and all the other bishops of Rome (for Peter, as Christ willed, founded and confirmed the Pontifical Church at Rome), should never openly fall from this faith, so as to teach the Church heresy, or any error, contrary to the faith. So S. Leo (serm. xxii.), on Natalis of SS. Peter and Paul; S. Cyprian (Lib. i. ep 3), to Cornelius; Lucius I., Felix I., Agatho, Nicolas I., Leo IX., Innocent III., Bernard and others, whom Bellarmine cites and follows (Lib. i. de Pontif. Roman).

For it was necessary that Christ, by His most wise providence, should provide for His Church, which is ever being sifted and tempted by the devil, and that not only in the time of Peter, but at all times henceforth, even to the end of the world, an oracle of the true faith which she might consult in every doubt and by which she might be taught and confirmed in the faith, otherwise the Church might err in faith, quod absit! For she is as S. Paul said to Timothy, "the pillar and ground of the truth" (1 Tim. iii 15). This oracle of the Church then is Peter, and all successive bishops of Rome. This promise made to Peter, and his successors, most especially applies to the time when Peter, as the successor of Christ, began to be the head of the Church, that is, after the death of Christ.

And when thou art converted, strengthen thy brethren. "From the sifting of Satan, that is from his temptation and from the sin by which thou wilt deny Me; for by this thou wilt be turned aside from Me, and My grace and love." So Euthymius, Theophylact, Jansen, F. Lucas, and others.

Some take this converted (conversus) as meaning "again" (iterum). So Bede, "Do thou, 0 Peter, again confirm the Apostles thy brethren, in the faith after My death, whom I now, while alive, strengthen by My words." For the Hebrew often uses the verb for the adverb. So Psalms 85:6.

Strengthen thy brethren. Thy brethren, and therefore Mine. The condescension of Christ here is wonderful. He does not call the Apostles sons although He spiritually begot them to God, but brothers: as well because Christ as man, was the brother of all men, being a sharer of the same human nature, as because the Apostles in their apostleship and preaching of the Gospel, were the brothers and colleagues of Christ; for they did the same work as He. Hence the Fathers, whom I have cited, and the Doctors of the Church conclude that Peter was set over the other Apostles by Christ, and consequently was made the head and chief over the whole Church, that he might build up, perfect, and confirm the Church in the faith and religion of Christ.