Gregory the Great, on 1Sam 7:3

“And Samuel spoke to all the house of Israel, saying: If you turn to the Lord with all your heart, put away the strange gods from among you, Baalim and Astaroth: and prepare your hearts unto the Lord, and serve him only, and he will deliver you out of the hand of the Philistines.”

“6. But since, with God as our guide, we have followed the ark on its journey all the way to the place of its exaltation, let us see with what zeal the preacher keeps watch over the correction of those subject to him. For it continues: 'And Samuel said to the whole house of Israel: If you return to the Lord with your whole heart, remove the foreign gods from your midst.' Now what does Sacred Scripture customarily call foreign gods, if not demons, which dwell in handmade idols? We have said that in Samuel the new preachers of holy Church are signified. Rightly, therefore, he commanded the whole house of Israel to remove the foreign gods from their midst: because among the Gentiles coming to the faith, the order of preachers demanded not only the truth of right progress, but also the condemnation of ancient superstition. For it would profit them nothing to honor the truth by professing it, or by rendering obedience to it, unless they had first abandoned what is false as worthy of detestation. Whoever even now is placed within holy Church through faith, yet is rebellious against God through wicked conduct, must be admonished to remove the foreign gods from his midst. For even if he detests handmade idols, he is nevertheless subjected to the commands of demons through depraved action. But he casts the foreign gods away from his midst who is so converted to God that he never venerates unclean spirits through evil works. 7. A zeal for a more cautious life can also be indicated through these words of exhortation. For what is in our midst, if not our heart? Yet there are some who are defiled by the weakness of their heart and the habit of depraved thought, even while engaged in the works of the world. They indeed do good things unceasingly, yet they never cease to think wicked thoughts. Since as many demons rest in their hearts as there are impure desires, they are urgently admonished to remove the foreign gods from their midst: so that they may offer to almighty God not only the uprightness of their work, but also the glory of interior purity. Hence it is fittingly added: 'And prepare your hearts for the Lord.' For he prepares his heart for the Lord who not only separates his mind from impure thought, but also illuminates it with the splendors of holy thoughts and virtues: so that, as if the idols had been cast away and crushed, he may make himself a temple of God; since he raises up a seat for divine grace in the very place where he did not permit wicked spirits to remain through the depraved desires subject to them. Rightly, therefore, he first admonishes the Israelites to remove the foreign gods from their midst, and then to prepare their hearts for God, because the proper order of beginning one's religion is that each person should first reject what is wicked, and then draw near to almighty God with the zeal of good intention. Finally, it is necessary that he who has already offered to God the resolve of a good will and the cleanness of a pure heart should set forth in the uprightness of good work what he has inwardly determined by living well. Therefore it is also added: 'And serve God alone.' 8. For he alone serves the Lord who does not mix wicked things with good works. For he who so does good that he does not abandon evil by no means serves God alone, because he shows obedience to the evil spirit whose will he does not fear to carry out. Whence it comes about that even while doing good he does not serve God, because He who is believed to have created the whole man does not deign to share him in common with the adversary. For hence it is that Truth itself declares through itself, saying: 'No one can serve two masters' (Matt. 6:24). Hence Paul, inquiring, says: 'What participation has righteousness with iniquity, or what fellowship has light with darkness? And what accord has Christ with Belial? Or what part has a believer with an unbeliever, or what agreement has the temple of God with idols?' (2 Cor. 6:14–15). Therefore we are commanded to serve the Lord alone, so that we who have already begun, by God's inspiration, to do good works for the purpose of obtaining the remission of our sins, may mix no wicked things with those same good works. For we are then loosed from the bond of our sins when the good things which we expend for their absolution are not mixed with evil. For the preacher, speaking to devoted penitents, says: 'If you return to the Lord with your whole heart, put away the foreign gods from your midst, and serve God alone.' As if to say: Then you will be able to be loosed from sins when you do not defile the good things of heart and deed, which you expend before God for your absolution, by other sins coming upon them. Wherefore, also making a promise in return, he says: 'And He will deliver you from the hand of the Philistines.' 9. Who else are designated by the Philistines in this passage but malignant spirits? They indeed, while intoxicated in an instant by the cup of their own pride, fell from the state of glory by swelling up. What then is the hand of the Philistines, if not that power of demons by which they lead souls dead in sin to eternal torments? From that hand of the Philistines, He alone had been free who said: "The prince of this world comes, and has nothing in me" (John 14:30). Hence Paul says: "All have sinned, and fall short of the glory of God" (Rom. 3:23). Hence he says again: "We also were children of wrath, even as the rest" (Eph. 2:3). O how great a gift is that promise by which it is said: "He will deliver you from the hand of the Philistines." For He alone stood free from this hand, who committed no sin. From it, assuredly, we are all delivered contrary to our own merit. Whence Paul also says: "Justified freely by His grace, through the redemption of His righteousness, on account of the redemption of preceding offenses, in the forbearance of God, for the demonstration of His justice in this time, that He Himself might be just, and the justifier of the one who is of the faith of our Lord Jesus Christ" (Rom. 3:24–26). Hence he likewise says: "By grace you have been saved" (Eph. 2:8). It is as if he were saying: He will deliver you from the power of malignant spirits, so that, as though cruel enemies have been put to flight from the road, when the death of the flesh intervenes, you may more securely reach those eternal joys which you desire. Great things, therefore, did He promise who, by commanding great things, taught, so that the greatness of the gift might incite to the strength of labor. For it is a great thing to serve the Lord alone, namely to do good unceasingly, and not to mix wicked deeds with good actions. But oh, how supremely great it is, in the passage of this life, not to encounter the power of bloodthirsty spirits, to see no terrors on the way, to find no opposing obstacles, to escape eternal punishments, to feel the protection of our Deliverer, to lose the momentary light of this world, but suddenly to find the ineffable brightness of eternity. Let them hear, therefore, let them hear, those who desire to be delivered from the hand of the Philistines: "Prepare your hearts for the Lord, and serve Him alone"—so that here each one may strive to gather for himself that by which there they may not fall into the hands of such great enemies, and may pass securely to life, they who, among the treasures of their salvation which they accumulate here by living well, carry with them no works of death.”

Imported from an open dataset — not yet checked against the printed edition.