Catechesis: Our Father

Thus you see how God wants us to pray to him for everything that attacks even our bodily welfare so that we seek and expect help from no one but him. But he has placed at the end this petition, for if we are to be protected and delivered from all evil, his name must first be hallowed in us, his kingdom come among us, and his will be done. In the end he will preserve us from sin and disgrace and from everything else that harms or injures us.—LC III:117, 118

But the efficacy of prayer consists in our learning to say AMEN to it—that is, not to doubt that our prayer is surely heard and will be answered.—LC III:119