3. In respect, then, of the profound nature of this question, I shall tell you what I think: let each one make the choice that pleases him, but let him think of it reverently; as it is written, “Think of the Lord with goodness, and in simplicity of heart seek Him.” Perhaps we ought to understand the Lord Himself as the doorkeeper: for the shepherd and the door are in human respects as much different from each other as the doorkeeper and the door; and yet the Lord has called Himself both the Shepherd and the door. Why, then, may we not understand Him also as the doorkeeper? For if we look at His personal qualities, the Lord Christ is neither a shepherd, in the way we are accustomed to know and to see shepherds; nor is He a door, for no artisan made Him: but if, because of some point of similarity, He is both the door and the Shepherd, I venture to say, He is also a sheep. True, the sheep is under the shepherd; yet He is both the Shepherd and a sheep. Where is He the Shepherd? Look, here thou hast it; read the Gospel: “I am the good Shepherd.” Where is He a sheep? Ask the prophet: “He was led as a sheep to the slaughter.” Ask the friend of the bridegroom: “Behold the Lamb of God, that taketh away the sin of the world.” Moreover,