The Great Commentary of Cornelius à Lapide
John 10:6
This parable spake Jesus unto them, but they knew not what things they were which he snake unto them. In the Greek παζοιμίον, a similitude, proverb. (See note on Proverbs 1:5.) The Pharisees and Jews, against whom He launched it (and the apostles also), did not understand it, as being involved and obscure.
Ver. 7. Then said Jesus unto them again, Verily, verily, I say unto you, I am the door of the sheep. Maldonatus thinks that Christ here speaks of two doors, the door of the house, i.e., Holy Scriptures, and the door of the sheepfold, which is Christ. He believes that the word door is used in two senses, one by which the shepherds themselves, and the other by which the sheep enter. But this distinction is more subtil than solid. For Christ speaks in both cases of one and the same door, that is of the sheepfold. What He said obscurely and parabolically (ver. 1) He explained in the parable. "He opened," says S. Augustine, "that which was closed. He is the door. Let us enter that we may rejoice in having so done." This distinction evades indeed one difficulty, i.e., how Christ enters as a shepherd through the door; that is, how He enters the door of the Church by Scripture witnessing to Him. But it does not escape the other difficulty how the same person is both the shepherd and the door. We must say, therefore, that He united together two parables (as was said above, ver. 2). For Christ intended to teach two things. First, that no one could enter into the Church, and afterwards into heaven, that is be justified and sanctified, except through Him. This He shows by the parable of the door. For as there is no ingress into the fold except through the door, so there is no entrance into the Church, militant and triumphant, except through Christ; and secondly, that He is the true Shepherd, as laying down His life for the sheep; but that the others were hirelings, whom the sheep ought not to follow. This He sets forth by the parable of the shepherd. But because this latter subject is connected with the former, He mixes up the two parables together. Ver. 8. All that ever came before me were thieves and robbers. What then! were all the prophets thieves and robbers? S. Augustine (contra Faustum, xvi. 12, and S. Jerome, lib. ii . contra Pelag.) replies that the prophets came not of their own accord, but were sent by God. And again they were not sent in addition to Christ, but with Christ, as His precursors, and announcing His advent. They were therefore not contrary to Christ, but counted as one with Him, as having come for His sake, and by His order and guidance. "They came with the Word of God. He sent them as the heralds of Him who was to come, and He possessed the hearts of those whom He had sent." Euthymius adds, "They came indeed before Christ, but they entered through the door." He speaks specially of those impostors who claimed to be the long-expected Messiah. They were thieves and robbers, such as Judas of Galilee, Theudas, and afterwards Simon Magus, Barchochebas, and many others, who claimed for themselves the name and title of the Christ. So S. Cyril, Chrysostom, Theophylact, Euthymius, and others.
But the sheep did not hear them. Because they discovered that they did not bring the token of the Messiah, as predicted by the prophets, but wished to steal away the faithful from Christ to claim them for themselves, and to cast them into hell. Ver. 9. I am the door, &c. Rupertus thinks that this relates to a different door and a different sheepfold from the other, according to what is said (ver. 16), "Other sheep I have," &c. But there is only one fold of Christ; one Church, that is. As He subjoins, "There shall be one fold and one shepherd." The meaning of the door already spoken of, Christ partly confirms, partly explains when He adds, "By Me if any man, enter in, he shall be saved." That is, if any man believe in Me, and therefore through faith in Me and by My grace enters the Church, "he shall be saved," i.e., shall be justified and blessed, if he continues, that is, in My faith, grace and charity even unto death. So S. Gregory (Epist. lib. vii. 49). "He enters through the door into the sheepfold who enters through Christ. But he enters through Christ who believes and teaches the truth concerning Him the Creator and Redeemer of mankind, and abides by what he preached."
And will go in and out. Will go out to the pastures, and after having fed will return to the resting-place, as sheep do. For the faithful will, when well fed, enter the fold of the Church, and again when hungry will go forth to the pastures of the soul, without any peril, for I will guide them to and fro. So Maldonatus.
But to go in and out signifies among the Hebrews to act with freedom, do one's own work, &c., and is connected with what follows. It means, the faithful man will move about everywhere without fear; will do his duty, and whatever he does, whether at home or abroad, will everywhere find food for his soul. The phrase denotes security, confidence, and freedom of converse; and of doing everything, everywhere, for and through Christ. So Cyril, Chrysostom.
Symbolically and tropologically, S. Gregory (Hom. xiv.) "The faithful withdraws within himself by contemplation, and comes forth in action to do good works." "He will enter in," says S. Augustine, "for inward meditation, he will go forth for outward action." The author of De spiritu et anima, says, "He will enter within to contemplate My Godhead, he will go forth to contemplate My Manhood, and in either case will find wondrous pastures." And in another place S. Gregory writes, "Within, they have the pastures of contemplation; without, the pastures of good works; inwardly they enrich their mind with devotions, outwardly they satiate themselves with good works." And lastly, Theophylact says, "He will enter in who has a care for the inward man; he will go out who mortifies his members upon earth."
Anagogically, Rupertus says, "He enters the Church by faith, to find therein pastures; he will go out when at death he migrates therefrom into heaven." "He enters," says S. Augustine, "into the Church through the door of faith, and goes forth through the same door of living faith into eternal life, where he will find pasture." And S. Gregory, "He will enter into faith, he will go forth to hope, and will find pasture in eternal satiety."