Here follows the second part of St. Bede's commentary on the Our Father, which is taken from his commentary on the Gospel of St. Matthew:

" 'Forgive us our debts, as we forgive those who owe debts to us.'  We are advantageously taught that we who are sinners are commanded to pray for our sins.  He who teaches us to pray for our debts and sins promises us paternal mercy and applies to us the forgiveness to follow.  He constrains us by a certain binding to seek forgiveness from no one else but God, to whom we are debtors, just as we forgive those who owe debts to us.  If we break faith with this arrangement, none of our prayers will bear fruit.  

" 'And lead us not into temptation.'  God does not himself lead us into temptation, but he allows the man who abandons his help to be led into it.  We are not praying hear that we not be tempted, but that we not be brought into temptation.  That is, it is one thing to be brought into temptation; it is another thing to be tempted.  No one can be proven worthy without temptation, and so a man should not pray that he not be tried by fire, or be touched by fire: rather, he prays that he not be burned by it.

" 'But deliver us from evil.'  That is, that we may stand safe and secure from all the workings of the devil and of the world, although it cannot be hoped that we be entirely freed from the fear of temptation, for this happiness is begun here in this present world but it will only be completed in the future."