Our Lord Christ Himself strikes down our enemies through us, or in company with us. For he who eats Christ's flesh and drinks His blood abides with Christ and He in him. Therefore, when we overcome the enemies, it is the blood of Christ which overcomes, as it is written in Revelation: 'and they overcame him by the blood of the Lamb'
Unseen Warfare: The Spiritual Combat and Path to Paradise of Lorenzo Scupoli (ed. St Vladimir's Seminary Press, 1978) - ISBN: 9780913836521