Haydock's Catholic Bible Commentary: Matthew
Ver. 16. But Jesus said. It may perhaps be asked here, if then our Lord, as St. John relates, looking upon the multitude, inquired of Philip how so great a multitude could be fed in the desert, how can this be true, which St. Matthew relates, that the disciples first desired Jesus to send away the multitude? But we are to understand, that after these words our Lord looked upon the multitude, and said to Philip what St. John mentions, which St. Matthew and the other evangelists omit. (St. Augustine, de concord. evang.) --- They have no need to go: give you them to eat. This he says for our instruction, that when the poor ask us alms, we send them not to other persons and other places, if we are able to relieve them ourselves. (Estius) --- This happened when the Passover was near at hand, (being the third since the commencement of our Saviour's ministry.) St. John does not usually relate what is mentioned by the other evangelists, especially what happened in Galilee. If he does it on this occasion, it is in order to introduce the subject of the heavenly bread, vi. 37.[31.?] He seems also to have had in view to describe the different Passovers during Christ's preaching. As he, therefore, staid in Galilee during the third Passover, he relates pretty fully his transactions during that time.
Ver. 19. Commanded the multitude to sit down.[3] Lit. to lie down, as it was then the custom of the Jews, and of other nations, at meat. See Mark vi, and John vi. &c. --- He blessed. St. Luke (ix. 16.) says, he blessed them. St. John (vi. 11,) says when he had given thanks: some take this blessing and giving thanks, for the same; but blessing them, must be referred to the loaves, and giving thanks, must be to God. The loaves miraculously increased partly in the hands of Christ, when he broke them, partly in the hands of the disciples, when they distributed them about. (Witham) --- He blessed and brake. From this let Christians learn to give thanks at their meals, begging of God that his gifts may be sanctified for their use. From this miracle it appears, that it is no impossibility for bodies, even in their natural state, to be in many places at the same time; since, supposing these loaves to have been sufficient for 50 persons, as there were a hundred such companies, the loaves must have been in a hundred different places at one and the same time. It cannot be said, as some pretend, that other loaves were invisibly put into the apostles' hands, since it is said that they filled 12 baskets of fragments of the five barley loaves; and again, he divided the two fishes among them all. If God could cause bodies, in their natural state, to be in many places at one and the same time, how much more easy would it be to do the same with spiritual bodies, with the properties of which we are entirely unacquainted; so that from this it appears, that the objection that Christ's body cannot be in many different places in the holy Eucharist, is nugatory. But, who are we, to ask such a question of the Almighty, who know not what is possible, and what is not possible for him to do! (Bp. Hay, Sincere Christian.)
Ver. 20. And they did all eat, and were filled. This miraculous multiplication of the loaves was effected on a Thursday evening --- an excellent figure of the blessed Eucharist. On the next morning, Friday, he cured the sick at Genesareth, and arrived at Capharnaum for the first vespers of the sabbath; where, in the Synagogue, he made his promise of the holy Eucharist, which he instituted on a Thursday evening, the eve of his death. See Evangile medite. Tom. iii, p. 425.
Ver. 22. And forthwith Jesus, &c. In this we have the genuine picture of a Christian life. After eating of the miraculous bread, we must like the disciples, prepare ourselves for labour. As bread was given Elias, to enable him to walk 40 days to the mountain of God, Horeb, so the blessed Eucharist, the true heavenly bread, is given us that we may be able to support the hardships to which we are exposed. (Paulus de Palacio.) --- We here also see the ardent love of the disciples for their Lord, since they were unwilling to be separated from him even for a moment. Theophylactus also adds that they were unwilling for him to go, ignorant how he could return to them.
Ver. 23. Alone to pray. By our Saviour's conduct on this occasion, we are taught to leave occasionally the society of men, and to retire into solitude, as a more proper place to commune with heaven in earnest and fervent prayer. The company of mortals is often a great distraction to the fervent Christian. (Denis the Carthusian)
Ver. 25. And in the fourth watch of the night. The Jews, under the Romans, divided the night, or the time from sunset to sunrise, into four watches, each of them lasting for three hours. And the hours were longer or shorter, according as the nights were at different seasons of the year. At the equinox, the first watch was from six in the evening till nine; the second, from nine till twelve; the third, from twelve till three in the morning; and the fourth, from three till six, or till sunrise. (Witham) --- They had been tossed by the tempest almost the whole night. (St. Jerome)
Ver. 28. And Peter ... said. Everywhere Peter appears full of faith and love. He now with his usual ardour believes he can do at the command of his Master, what by nature he is unable to perform. He desires to be with his Lord, and cannot bear delay; and, in reward of his eagerness, Christ works a miracle in his favour. (Jansenius) --- Lord, if it be thou. Peter, by saying if, did not doubt in faith, as Calvin pretends; nor was he guilty of any arrogance, as others conjecture; for our Lord granted his request. Peter knew that his request would be pleasing to Christ, who had shewn himself so very considerate for his apostles. Peter had also worked miracles himself in the name of Christ, and observing that he wished to pass by, Peter hastened to be with him, to embrace him, and serve him. (Tirinus)
Ver. 29. Let those who argue that the body of our Saviour was not a real but an aerial body, or phantom, because he walked upon the waters, explain to us how St. Peter, whom they will not deny to be a true man, walked on the waters. (St. Jerome)
Ver. 30. He was afraid. As long as Peter had his eye and faith fixed on Christ, the liquid element yielded not to his steps; but the moment he turns his thoughts on himself, his own weakness, and the violence of the winds and waves, he begins to lose confidence, and on that account to sink. Again his faith saves him; he calls upon the Lord, who stretcheth forth his arm, and takes hold of him. (Jansenius) --- By his confidence in God, we learn what we can do by the divine assistance; and by his fear, what we are of ourselves: also, that no one receives from God the strength he stands in need of, but he who feels that of himself he can do nothing. (St. Augustine, serm. 76.)