Beda Venerabilis
This practice is often observed in the growth of spiritual life. The adversary, who is tireless, along with his unholy allies—evil spirits and individuals—constantly seeks to obstruct the work of faith and virtuous deeds, particularly when we let our guard down. They surround the faithful, attempting to assail their thoughts with the blade of wicked suggestion. To withstand such attacks, we must don the complete armor of God, enabling us to confront evil, enduring all challenges, and ultimately stand firm (Eph. 6:13). It is fitting to recall how Nehemiah organized the people outside the wall, equipping them with swords and spears so that the builders, protected by armed defenders, could engage in their task with confidence and security.
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Within the community of believers, roles are also diverse: some contribute to the Church's edification through acts of goodness, while others, equipped with the weaponry of sacred scripture, remain vigilant against those who would undermine the Church. The former bolster their neighbors in the truths of faith through their devout actions, whereas the latter engage in necessary spiritual warfare against the enemy and sin to preserve that very faith, shepherding the Lord’s flock and safeguarding it from danger.