From the early Church Fathers to now.
10 Patristic · 2 Orthodox · 1 Medieval
“Be sober and watch: because your adversary the devil, as a roaring lion, goeth about seeking whom he may devour.”
“Furthermore, we desire you to know this, that in our times, as our sins embarrassed us, and that ancient enemy who always goeth about like a roaring lion, seeking whom he may devour,”
“Therefore, beloved brethren, we must be on our guard, and strive with all our powers to repel, with solicitous and full watch-fulness, the enemy, raging and aiming his darts against every part of our body in which we can be stricken and wounded, in accordance with what the Apostle Peter, in his epistle, forewarns and teaches, saying, "Be sober, and watch; because your adversary the devil, as a roaring lion, goeth about seeking any one to devour."”
“That the devil wanders over all the earth under heaven and ranges about like a mad dog, seeking whom he may devour, we learn from the story of Job.”
“For indeed if virtue be absent, it is no advantage to be an angel by nature; and the Devil is a proof of this, who was an angel once: but if virtue be present, it is no loss to be a man by nature; and John is a proof of this, who was a man, and Elias who went up into heaven, and all those who are about to depart thither. For these indeed, though with bodies, were not prevented from dwelling in heaven: while those others, though without bodies, could not remain in heaven. Let no one then grieve or be vexed with his nature as if it were a hindrance to him, but with his will. He the Devil from being incorporeal became a lion: for lo! it saith, "Our adversary, as a roaring lion, walketh about, seeking whom he may devour:" we from being corporeal, become angels.”
“Who goes roaring around, raging madly As he seeks to entrap and devour us, When, O infinite God, we praise thee only!”
“Who could avoid encountering the teeth of this lion, if the lion from the tribe of Judah had not conquered?”
“Be sober and vigilant, etc. In the exposition of this sentence, let us place not our own words, but those of the blessed Cyprian. "He (says he) circles around us individually, and like an enemy besieging enclosed walls, he inspects and tests to see if there is any part of the members that is less stable and less dependable, through which entry to the interior may be gained. He offers alluring forms and easy pleasures to the eyes so that through sight he may destroy chastity. He tries to tempt the ears through melodious music so that the hearing of a sweeter sound may dissolve and weaken Christian vigor. He provokes the tongue with revilement, incites the hand with injuries inducing it to the petulance of killing; to make one a fraudster, he opposes unjust gains; to capture the soul with money, he introduces pernicious advantages. He promises earthly honors to take away heavenly ones. He presents false things to steal the true. And when he cannot deceive secretly, he openly threatens, always restlessly and always hostile, intending the threat of a turbulent persecution to overpower the servants of God. In peace, he is deceitful; in persecution, violent. Therefore, against all the deceitful ambushes and open threats of the devil, the mind must stand trained and armed, as prepared always to resist as the enemy is to attack always."”
“Upon those who are accustomed to sleeping spiritually (which means being absorbed in vanity) and thereby burden the sobriety of the soul, the cunning beast of despair attacks. Warning against this, the disciple of Christ urges us to always be vigilant and to beware of the sower of tares, so that while we sleep, that is, lead a careless and lazy life, he does not secretly sow wicked thoughts and draw us away from the true life. For he, says the apostle, constantly goes about like a roaring lion, seeking whom he may devour. The holy martyr Justin attributes the cause of such relentless cunning and assaults on the part of the devil to the fact that before the coming of the Lord, the devil did not clearly know how severe his punishment would be, since the holy prophets spoke of this in riddles (thus Isaiah depicted the entire sorrowful history and fate of the devil in veiled form under the figure of the Assyrian (Is. 18:4–7)), but when, with the coming of the Lord, the devil clearly learned that for him and his angels there awaits and is prepared "everlasting fire" (Mt. 25:41), from that time on he ceaselessly plots snares against the faithful, wishing to make many partakers of his apostasy, so as not to bear alone the disgrace of condemnation, and to find in this a cold and malicious consolation.”
“Probably, those to whom the Apostle Peter wrote this endured many sorrows for Christ; that is why he comforts them both at the beginning and at the end of the epistle — at the beginning by the fact that they become partakers in the sufferings of the Lord and heirs of the glory that is to be revealed, and here by the fact that not they alone suffer, but all believers living in the world.”
“The soul is disposed to the gift of fortitude through the unconquerable shield of faith. The devil draws man to the concupiscence of the flesh, to the concupiscence of the eyes, and to the pride of life. What is the means of resisting these? Through truth. "His truth shall encompass you with a shield," namely through faith dwelling within. And blessed Peter said: "Your adversary as a roaring lion goes about seeking whom he may devour: whom resist, strong in faith." If we loved truth, we would not fear the devil, because it is written: "The eyes of the Lord behold the whole earth and give fortitude to those who believe in him with a perfect heart."”
“Cassian told a story of a hermit who was living in the desert. He asked God to grant that he should never fall asleep when the conversation was edifying but that if anyone spoke with back-biting or hate, he should nod off at once so that he would not hear poisonous words. He said that the devil strives hard to make men speak idle words, and fights against letting anyone hear any spiritual teaching. He gave the following example of this: Once when I was talking to some brothers for the good of their souls they became so drowsy that they could not even keep their eyelids open. I wanted to show them that this was the devil's work, so I started gossiping: and at once they sat up and began to enjoy what I was saying. But I said sadly, 'We were talking of heaven just now, and your eyes were closing in slumber: but the moment the talk became frivolous, you all began to listen eagerly. I beg you then, dear brothers, since you know that this is the work of the devil, be watchful and beware of falling asleep when you are hearing about spiritual things.'”
“Evagrius said, 'If your attention falters, pray. As it is written, pray in fear and trembling (cf. Phil. 2:12), earnestly and watchfully. We ought to pray like that, especially because our unseen and wicked enemies are trying to hinder us forcefully.'”
“"Be sober-minded; be watchful." On those who are spiritually asleep (this, however, is to aspire to vain things) and from this, the watchfulness of souls is weighed down, the evil and most savage beast of despair is accustomed to leap upon them. Therefore, Christ's disciple, strengthening us (Matt. 13:24), exhorts us to always be vigilant and to watch over him who sows tares, lest in any way, while we are asleep, or living carelessly and sluggishly, he secretly sows wicked thoughts and drives us away from true life. For the Devil does not cease, Peter says, prowls around like a roaring lion, seeking someone to devour; to whom you also resist with firm strength of mind. Concerning such sharp snares and the precise deceit of him against us, the holy Justin Martyr also brings forth the case, stating that the Devil did not clearly know the power of his punishment before the coming of the Lord, when the divine prophets had announced it mysteriously: just as Isaiah (14:4), under the persona of the Assyrian, tragically narrates the entire representation of the Devil. But when the Lord had come and had openly said that the eternal fire is reserved and prepared for the Devil and his angels (Matt. 25:41), upon hearing this, he does not cease to lie in wait for the faithful, wanting to have many companions in his defection, lest he be ashamed to cling to this alone, applauding himself with this cold and envious consolation.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.