Pseudo-Augustine — as excerpted in the Catena Aurea on Luke 11:1-4

“(ubi sup.) But what is the debt except sin? If thou hadst not received, thou wouldest not owe money to another. And therefore sin is imputed to you. For thou hadst money with which thou wert born rich, and made after the likeness and image of God, but thou hast lost what thou then hadst. As when thou puttest on pride thou losest the gold of humility, thou hast receipted the devil’s debt which was not necessary; the enemy held the bond, but the Lord crucified it, and cancelled it with His blood. But the Lord is able, who has taken away our sins and forgiven our debts, to guard us against the snares of the devil, who is wont to produce sin in us. Hence it follows, And lead us not into temptation, such as we are not able to bear, but like the wrestler we wish only such temptation as the condition of man can sustain.”