See how great a preparation thou needest, to be able to say boldly to God, O Father, for if thou hast thy eyes fixed on worldly things, or courtest the praise of men, or art a slave to thy passions, and utterest this prayer, I seem to hear God saying, ‘Whereas thou that art of a corrupt life callest the Author of the incorruptible thy Father, thou pollutest with thy defiled lips an incorruptible name. For He who commanded thee to call Him Father, gave thee not leave to utter lies. (et serm. 3.). But the highest of all good things is to glorify God’s name in our lives. Hence He adds, Hallowed be thy name. For who is there so debased, as when He sees the pure life of those who believe, does not glorify the name invoked in such a life. He then who says in his prayer, Be thy name, which I call upon, hallowed in me, prays this, “May I through Thy concurring aid be made just, abstaining from all evil.”
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Orat. Dom. Serm. 2.