MATTHEW 7/8 24 “Therefore whoever hears these sayings of Mine, and does them, I will liken him to a wise man who built his house on the rock: 25 and the rain descended, the floods came, and the winds blew and beat on that house; and it did not fall, for it was founded on the rock. 26 “But everyone who hears these sayings of Mine, and does not do them, will be like a foolish man who built his house on the sand: 27 and the rain descended, the floods came, and the winds blew and beat on that house; and it fell. And great was its fall.” 28 And so it was, when Jesus had ended these sayings, that the people were astonished at His teaching, 29 for He taught them as one having authority, and not as the scribes. So He got into a boat, crossed over, and came to His own city. Then behold, they brought to Him a paralytic lying on a bed. When Jesus saw their faith, He said to the paralytic, “Son, be of good cheer; your sins are forgiven you.” And at once some of the scribes said within themselves, “This Man blasphemes!” But Jesus, knowing their thoughts, said, “Why do you think evil in your hearts? For which is easier, to say, ‘Your sins are forgiven you,’ or to say, ‘Arise and walk’? But that you may know that the Son of Man has power on earth to forgive sins”—then He said to the paralytic, “Arise, take up your bed, and go to your house.” And he arose and departed to his house. Now when the multitudes saw it, they marveled and glorified God, who had given such power to men.

St. Cyril of Alexandria:

Spiritually understood, the one who rightly hears the word is contrasted with the builder who builds his house on sand. In time of temptation the house falls down. The onslaught of evil wind covers it with silt, and troubled waters flood into the soul. From this turbid flood stream of iniquity the house is shaken to its foundations. This should rouse us to become aware of the danger that comes in final judgment. Those who hear the Lord’s words are like a wise man building on rock. Those who do not follow the Lord’s words are likened to a foolish man building on sand.