Catechism of the Council of Trent: "And lead us not into temptation"
Remembrance Of The Victory Of Christ And His Saints
The faithful should also reflect who is their leader against the temptations of the enemy; namely, Christ the Lord, who was victorious in the same combat. He overcame the devil; He is that stronger man who, coming upon the strong armed man, overcame him, deprived him of his arms, and stripped him of his spoils. Of Christ's victory over the world, we read in St. John: Have confidence: I have overcome the world; and in the Apocalypse, He is called the conquering lion; and it is said of Him that He went forth conquering that He might conquer, because by His victory He has given power to others to conquer.
The Epistle of St. Paul to the Hebrews abounds with the victories of holy men, who by faith conquered kingdoms, stopped the mouths of lions, etc. While we read of such achievements, we should also take into account the victories which are every day won by men eminent for faith, hope and charity, in their interior and exterior conflicts with the demons—victories so numerous and so signal, that, were we spectators of them, we should deem no event of more frequent occurrence, none of more glorious issue. It was with reference to such defeats of the enemies that St. John wrote: I write unto you, young men, because you are strong, and the word of God abideth in you, and you have overcome the wicked one.
Watchfulness
Satan, however, is overcome not by indolence, sleep, wine, revelling, or lust; but by prayer, labor, watching, fasting, continence and chastity. Watch ye and pray, that ye enter not into temptation, as we have already said, is the admonition of our Lord. They who make use of these weapons in the conflict put the enemy to flight; for the devil flees from those who resist him.
The Author of victory over Temptation
But from the consideration of these victories achieved by holy men which we have mentioned, let no one indulge feelings of self-complacency, nor flatter himself that, by his own single unassisted exertions, he is able to withstand the temptations and hostile assaults of the demons. This is not within the power of human nature, nor within the capacity of human frailty.
The strength by which we lay prostrate the satellites of Satan comes from God, who maketh our arms as a bow of brass; by whose aid the bow of the mighty is overcome, and the weak are girt with strength; who giveth us the protection of salvation, whose right hand upholdeth us: who teacheth our hands to war, and our fingers to battle. Hence to God alone must thanks be given for victory, since it is only through His guidance and help that we are able to conquer. This the Apostle did; for he said: Thanks to God, who hath given us the victory, through our Lord Jesus Christ. The voice from heaven, mentioned in the Apocalypse, also proclaims God to be the author of our victories: Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ; because the accuser of our brethren is cast forth; and they overcame him by the blood of the Lamb. The same book declares that the victory obtained over the world and the flesh belongs to Christ the Lord, when it says: They shall fight with the Lamb, and the Lamb shall overcome them. But enough has now been said on the cause and the manner of conquering (temptation).
The Rewards of Victories over temptation
When these things have been explained, the pastor should instruct the faithful concerning the crowns prepared by God, and the eternal and superabundant rewards reserved for those who conquer. He should quote from the Apocalypse the following divine promises: He that shall overcome shall not be hurt by the second death; and in another place: He that shall overcome, shall thus be clothed in white garments, and I will not blot out his name out of the book of life, and I will confess his name before my Father, and before his angels. A little after, our divine Lord Himself thus addresses John: He that shall overcome, I will make him a pillar in the temple of my God: and he shall go out no more: and again: To him that shall overcome, I will give to sit with me in my throne; as I also have overcome, and am set down with my Father in his throne. Finally, having unveiled the glory of the Saints, and the never ending bliss which they shall enjoy in heaven, He adds, He that shall overcome shall possess these things.