Depuis le Jour §34

³⁴ Remember, too, beloved sons, that the Church is rightly compared to an army in battle array "sicut castrorum acies ordinata,"(23) because it is her mission to combat the enemies, visible and invisible, of God and men's souls. Wherefore did St. Paul recommend Timothy to bear himself "as a good soldier of Jesus Christ?"(24) Now, that which constitutes the strength of an army and contributes most to its victory is discipline and the exact and rigorous obedience of all toward those in command.