Since man’s life on earth is a time of trial, and all who would live devotedly in Christ must undergo persecution, and the devil your foe is on the prowl like a roaring lion looking for prey to devour, you must use every care to clothe yourselves in God’s armor so that you may be ready to withstand the enemy’s ambush.
Your loins are to be girt with chastity, your breast fortified by holy meditations, for as Scripture has it, holy meditation will save you. Put on holiness as your breastplate, and it will enable you to love the Lord your God with all your heart and soul and strength, and your neighbor as yourself. Faith must be your shield on all occasions, and with it you will be able to quench all the flaming missiles of the wicked one: there can be no pleasing God without faith; and the victory lies in this — your faith. On your head set the helmet of salvation, and so be sure of deliverance by our only Saviour, who sets his own free from their sins. The sword of the spirit, the word of God, must abound in your mouths and hearts. Let all you do have the Lord’s word for accompaniment. (Rule of St. Albert #18-19)