In the Sixth Petition we pray that God would keep temptations from us, but if He permits them to come to us, that He would enable us to overcome them.
Eph. 6:13,18: Take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand... praying always with all prayer and supplication.
1 Cor. 10:13: God is faithful, Who will not suffer you to be tempted above that ye are able; but will with the temptation also make a way to escape, that ye may be able to bear it.
Luther: “We must endure trials, yea, be engulfed in them; but we pray for this, that we may not fall and be drowned in them.”