Matthew 7:26

Because there would be some who would admire the things that were said by the Lord, but would not add that shewing forth of them which is in action, He threatens them before, saying, "Every man that hears these words of mine, and does them, shall be likened to a wise man."

He said not, I will account him that hears and does, as wise; but, "He shall be likened to a wise man." He then that is likened is a man; but to whom is he likened? To Christ; but Christ is the wise man who had built His house, that is, the Church, upon a rock, that is, upon the strength of the faith. The foolish man is the Devil, who has built his house, that is, all the ungodly, upon the sand, that is, the insecurity of unbelief, or upon the carnal, who are called the sand on account of their barrenness; both because they do not cleave together, but are scattered through the diversity of their opinions, and because they are innumerable. The rain is the doctrine that waters a man, the clouds are those from which the rain falls. Some are raised by the Holy Spirit, as the Apostles and Prophets, and some by the spirit of the Devil, as are the heretics. The good winds are the spirits of the different virtues, or the Angels who work invisibly in the senses of men, and lead them to good. The bad winds are the unclean spirits. The good floods are the Evangelists and teachers of the people; the evil floods are men full of an unclean spirit, and overflowing with many words; such are philosophers and the other professors of worldly wisdom, out of whose belly come rivers of dead water. The Church then which Christ has founded, neither the rain of false doctrine shall sap, nor the blast of the Devil overturn, nor the rush of mighty floods remove. Nor does it contradict this, that certain of the Church do fall; for not all that are called Christians, are Christ's, but, "The Lord knows them that are his." [2 Tim 2:19] But against that house that the Devil has built comes down the rain of true doctrine, the winds, that is, the graces of the Spirit, or the Angels; the floods, that is, the four Evangelists and the rest of the wise; and so the house falls, that is, the Gentile world, that Christ may rise; and the ruin of that house was great, its errors broken up, its falsehoods laid open, its idols throughout the whole world broken down. He then is like unto Christ who hears Christ's words and does them; for he builds on a rock, that is, upon Christ, who is all good, so that on whatsoever kind of good any one shall build, he may seem to have built upon Christ. But as the Church built by Christ cannot be thrown down, so any such Christian who has built himself upon Christ, no adversity can overthrow, according to that, "Who shall separate us from the love of Christ?" [Rom 8:35] Like to the Devil is he that hears the words of Christ, and does them not. For words that are heard, and are not done, are likened to sand, they are dispersed and shed abroad. For the sand signifies all evil, or even worldly goods. For as the Devil's house is overthrown, so such as are built upon the sand are destroyed and fall. And great is that ruin if he have suffered any thing to fail of the foundation of faith; but not if he have committed fornication, or homicide, because he has whence he may arise through penitence, as David.

Or the great ruin is to be understood that with which the Lord will say to them that hear and do not, "Go ye into everlasting fire." [Matt 25:41]

Or otherwise; On sand which is loose and cannot be bound into one mass, all the doctrine of heretics is built so as to fall.

Otherwise; By the showers He signifies the allurements of smooth and gently invading pleasures, with which the faith is at first watered as with spreading rills, afterwards comes down the rush of torrent floods, that is, the motions of fiercer desire, and lastly, the whole force of the driving tempests rages against it, that is, the universal spirits of the Devil's reign attack it.

Otherwise; Rain, when it is put to denote any evil, is understood as the darkness of superstition; rumours of men are compared to winds; the flood signifies the lust of the flesh, as it were flowing over the land, and because what is brought on by prosperity is broken off by adversity. None of these things does he fear who has his house founded upon a rock, that is, who not only hears the command of the Lord, but who also does it. And in all these he submits himself to danger, who hears and does not. For no man confirms in himself what the Lord commands, or himself hears, but by doing it. But it should be noted, that when he said, "He that heareth these words of mine," He shews plainly enough that this sermon is made complete by all those precepts by which the Christian life is formed, so that with good reason they that desire to live according to them, may be compared to one that builds on a rock.

6. And now, to confirm the deductions of reason by the authority of Scripture, viz., that it is our own doing whether we live rightly or not, and that we are not compelled, either by those causes which come to us from without, or, as some think, by the presence of fate, we adduce the testimony of the prophet Micah, in these words: “If it has been announced to thee, O man, what is good, or what the Lord requires of thee, except that thou shouldst do justice, and love mercy, and be ready to walk with the Lord thy God.” Moses also speaks as follows: “I have placed before thy face the way of life and the way of death: choose what is good, and walk in it.” Isaiah, moreover, makes this declaration: “If you are willing, and hear me, ye shall eat the good of the land. …

In Solomon, in Ecclesiasticus: “Be not hasty in thy tongue, and in thy deeds useless and remiss.” And Paul, in the first to the Corinthians: “The kingdom of God is not in word, but in power.” Also to the Romans: “Not the hearers of the law are righteous before God, but the doers of the law shall be justified.” Also in the Gospel according to Matthew: “He who shall do and teach so, shall be called greatest in the kingdom of heaven.” Also in the same place: “Every one who heareth my words, and doeth them, I will liken him to a wise man who built his house upon a rock. The rain descended, the floods came, the winds blew, and beat upon that house, and it fell not: for it was founded upon a rock. And every one who heareth my words, and doeth them not, I will liken him to the foolish man, who built his house upon the sand. …

90. Moses killing the Egyptian in defending one of his brethren reminds us naturally of the destruction of the devil, our assailant in this land of strangers, by our defender the Lord Christ. And as Moses hid the dead body in the sand, even so the devil, though slain, remains concealed in those who are not firmly settled. The Lord, we know, builds the Church on a rock; and those who hear His word and do it, He compares to a wise man who builds his house upon a rock, and who does not yield or give way before temptation; and those who hear and do not, He compares to a foolish man who builds on the sand, and when his house is tried its ruin is great.

44. Further, if we inquire more carefully what is meant by "outside," especially as he himself makes mention of the rock on which the Church is built, are not they in the Church who are on the rock, and they who are not on the rock, not in the Church either? Now, therefore, let us see whether they build their house upon a rock who hear the words of Christ and do them not. The Lord Himself declares the contrary, saying, "Whosoever heareth these sayings of mine, and doeth them, I will liken him unto a wise man, which built his house upon a rock;" and a little later, "Every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand." If, therefore, the Church is on a rock, those who are on the sand, because they are outside the rock, are necessarily outside the Church. …

15. To him we may answer as follows: Either Paradise is Paradise, or Egypt is Paradise. Further, if Egypt be not Paradise, how can the water of Paradise be in Egypt? But it will be said to us that it extends even thither by flowing forth from Paradise. In like manner, therefore, baptism extends to heretics. Also we say: Either the rock is the Church, or the sand is the Church. Further, since the sand is not the Church, how can baptism exist with those who build upon the sand by hearing the words of Christ and doing them not? And yet it does exist with them; and in like manner also it exists among the heretics.

247. Augustin answered: Against this error I have said much already, both in this work and elsewhere. But since you think that in this sentence you have so strong a confirmation of your vain opinions, that you deemed it right to end your epistle with these words, that they might remain as it were the fresher in the minds of your readers, I think it well to make a short reply. We recognize in heretics that baptism, which belongs not to the heretics but to Christ, in such sort as in fornicators, in unclean persons or effeminate, in idolaters, in poisoners, in those who retain enmity, in those who are fond of contention, in the credulous, in the proud, given to seditions, in the envious, in drunkards, in revellers; and in men like these we hold valid the baptism which is not theirs but Christ’s. …

14. “And he brought him to Jesus; and when Jesus beheld him, He said, Thou art Simon the son of Joannes: thou shall be called Cephas, which is, by interpretation, Peter.” It is not a great thing that the Lord said whose son Peter was. What is great to the Lord? He knew all the names of His own saints, whom He predestinated before the foundation of the world; and dost thou wonder that He said to one man, Thou art the son of this man, and thou shall be called this or that? Is it a great matter that He changed his name, and converted it from Simon to Peter? Peter is from petra , a rock, but the petra [rock]; is the Church; in the name of Peter, then, was the Church figured. …

4. Let us not then be out of heart for the present evils; for if thou hast any sins remaining, they will disappear, and easily be burnt up by the tribulation; but if thou possessest virtue, thou wilt become thereby more illustrious and distinguished; for if thou art continually vigilant and sober, thou wilt be superior to all injury. For it is not the nature of the trials, but the listlessness of those who are tried, that is apt to cause their overthrow. So that if thou desirest to rejoice, and to enjoy ease and pleasure, seek neither for pleasure nor ease, but seek for a soul full of patience, and one that is able to manifest fortitude; since if thou hast not this, not only will trial put thee to shame, but repose will destroy and overthrow thee yet more signally. …

2. Thou hadst heard indeed a false report of the march, and wert in danger of being severed from the present life. But that blessed Job, when the messengers came one after another, and he had heard them announcing their dreadful news, and adding thereto the insupportable destruction of his children, neither cried nor groaned, but turned to prayer, and gave thanks to the Lord. Him do thou too imitate; and when any comer announces that soldiers have encircled the city, and are about to plunder its wealth, flee to thy Lord and say, “The Lord gave, the Lord hath taken away; as it seemeth good to the Lord, so is it done. Blessed be the name of the Lord for ever.” The experience of the actual events did not terrify him; yet the mere report frightens thee. …

73. But this speed, in its untrustworthiness and excessive haste, is in danger of being like the seeds which fell upon the rock, and, because they had no depth of earth, sprang up at once, but could not bear even the first heat of the sun; or like the foundation laid upon the sand, which could not even make a slight resistance to the rain and the winds. Woe to thee, O city, whose king is a child, says Solomon. Be not hasty of speech, says Solomon again, asserting that hastiness of speech is less serious than heated action. …