Prov 5:15

“Attempt, O hearer, to have your own well and your own spring, so that you too, when you take up a book of the Scriptures, may begin even from your own understanding to bring forth some meaning, and in accordance with those things which you have learned in the church, you too attempt to drink from the fountain of your own abilities. You have the nature of "living water" within you. There are within you perennial veins and streams flowing with rational understanding, if only they have not been filled with earth and rubbish. But get busy to dig out your earth and to clean out the filth, that is, to remove the idleness of your natural bent and to cast out the inactivity of your heart.”

“"Drink water out of your own cistern," that is, examine your own resources, do not go to the springs belonging to others, but from your own streams gather for yourself the consolations of life. Do you have metal plates, clothing, beasts of burden, utensils of every kind? Sell them; permit all things to go except your [soul's] liberty.”

“And I hope, O man, that you imitate the example of this kind, so that you yourself may bear fruit of joy and delight! The sweetness of your grace is within yourself, it sprouts from you, it remains in you, it is within you, that is, the joy of your conscience is to be sought within yourself. Therefore, it says: Drink water from your own vessels, and from the fountains of your own wells (Prov., V, 15).”

“[Daniel 2:22] "It is He who reveals deep and hidden things, and He knows what is placed in the darkness, and with Him is the light." A man to whom God makes profound revelations and who can say, "O the depth of the riches of the knowledge and wisdom of God!" (Romans 11:33), he it is who by the indwelling Spirit probes even into the deep things of God, and digs the deepest of wells in the depths of his soul. He is a man who has stirred up the whole earth, which is wont to conceal the deep waters, and he observes the command of God, saying: "Drink water from thy vessels and from the spring of thy wells" (Proverbs 5:15). As for the words which follow, "He knows what is placed in the darkness, and with Him is the light," the darkness signifies ignorance, and the light signifies knowledge and learning. Therefore as wrong cannot hide God away, so right encompasses and surrounds Him. Or else we should interpret the words to mean all the dark mysteries and deep things (concerning God), according to what we read in Proverbs: "He understands also the parable and the dark saying." (Proverbs 1:6, LXX) This in turn is equivalent to what we read in the Psalms: "Dark waters in the clouds of the sky" (Psalm 18:11). For one who ascends to the heights and forsakes the things of earth, and like the birds themselves seeks after the most rarified atmosphere and everything ethereal, he becomes like a cloud to which the truth of God penetrates and which habitually showers rain upon the saints. Replete with a plenitude of knowledge, he contains in his breast many dark waters enveloped with deep darkness, a darkness which only Moses can penetrate and speak with God face to face (Exodus 33:11), of Whom the Scripture says: "He hath made darkness His hiding-place" (Psalm 18:11).”

“"Let the fountain of your water be your own and let no stranger share with you." For all who do not love God are strangers, are antichrists. And although they enter the basilicas, they cannot be numbered among the sons of God. That fountain of life does not belong to them. Even an evil person can have baptism; even an evil person can have prophecy. We find that king Saul had prophecy; he was persecuting the holy David and was filled with the Spirit of prophecy and began to prophesy. Even an evil person can receive the sacrament of the body and blood of the Lord, for about such it has been said, "He who eats and drinks unworthily eats and drinks judgment to himself." Even an evil person can have the name of Christ, that is, even an evil person can be called Christian; and about these it has been said, "They profaned the name of their God." Therefore, even an evil man can have all these mysteries. But he cannot have love and be evil. This, then, is the peculiar gift; it is the unique fountain. For drinking of this the Spirit of God encourages you; for drinking of himself the Spirit of God encourages you.”

“"Drink the waters from your own wells, fresh water from your own source." … As the prophet Isaiah declares, "You will be like a well-watered garden, like a flowing spring whose waters will never fail. And places emptied for ages will be built up in you. You will lift up the foundations laid by generation after generation. You will be called the builder of fences, the one who turns the pathways toward peace." … And so it will happen that not only the whole thrust and thought of your heart but even all the wanderings and the straying of your thoughts will turn into a holy and unending meditation on the law of God.”