THE CATECHISM OF ST. PIUS X – The Lord’s Prayer — The Seventh Petition
39 Q: What do we ask in the Seventh Petition: But deliver us from evil?
A: In the Seventh Petition: But deliver us from evil, we ask God to free us from evils, past, present, and future, and particularly from the greatest of all evils which is sin, and from eternal damnation, which is its penalty.
40 Q: Why do we say: Deliver us from evil and not: From evils?
A: We say: Deliver us from evil, and not, from evils, because we should not desire to be exempt from all the evils of this life, but only from those which are not good for our souls; and hence we beg liberation from evil in general, that is, from whatever God sees would be bad for us.
41 Q: Is it not lawful to beg liberation from some evil in particular, for example, from sickness?
A: Yes, it is lawful to beg liberation from some evil in particular but always in bowing to the will of God, who may even ordain that particular affliction for the good of our soul.
42 Q: How do the tribulations, which God sends us, help us?
A: Tribulations help us to do penance for our sins, to practice virtue, and above all to imitate Jesus Christ, our Head, to whom it is fitting we should conform ourselves in our sufferings, if we wish to have a share in His glory.
A: Amen means: So be it; So I do desire; Thus do I pray the Lord; Thus do I hope.
44 Q: To obtain the graces asked in the Our Father is it enough to recite it any way at all?
A: To obtain the graces asked in the Our Father we must recite it without haste and with attention; and we must put our heart into it.
45 Q: When should we say the Our Father?
A: We should say the Our Father every day, because every day we have need of God’s help.