Luke 18:1

He who hath redeemed thee, hath shown thee what He would have thee do. He would have thee be instant in prayer, He would have thee ponder in thy heart the blessings thou art praying for, He would have thee ask and receive what His goodness is longing to impart. He never refuses His blessings to them that pray, but rather stirs men up by His mercy not to faint in praying. Gladly accept the Lord's encouragement: be willing to do what He commands, not to do what He forbids. Lastly, consider what a blessed privilege is granted thee, to talk with God in thy prayers, and make known to Him all thy wants, while He though not in words, yet by His mercy, answers thee, for He despiseth not petitions, He tires not but when thou art silent.

(lib. ii. qu. 45.) Our Lord utters His parables, either for the sake of the comparison, as in the instance of the creditor, who when forgiving his two debtors all that they owed him was most loved by him who owed him most; or on account of the contrast, from which he draws his conclusion; as, for example, if God so clothe the grass of the field, which to-day is, and tomorrow is cast into the oven, shall he not much more clothe you, O ye of little faith. So also here when he brings forward the case of the unjust judge.

Or else; Whenever men inflict injury upon us, we must then think it a noble thing to be forgetful of the evil; but when they offend against the glory of God by taking up arms against the ministers of God's ordinance, we then approach God imploring His help, and loudly rebuking them who impugn His glory.

We should say that he is always praying, and faints not, who never fails to pray at the canonical hours. Or all things which the righteous man does and says towards God, are to be counted as praying.

Our Lord having spoken of the trials and dangers which were coming, adds immediately afterward their remedy, namely, constant and earnest prayer. We may observe, that irreverence towards man is a token of a greater degree of wickedness. For as many as fear not God, yet are restrained by their shame before men, are so far the less sinful; but when a man becomes reckless also of other men, the burden of his sins is greatly increased. It follows, And there was a widow in that city. As if He said, If perseverance could melt a judge defiled with every sin, how much more shall our prayers incline to mercy God the Father of all mercies! But some have given a more subtle meaning to the parable, saying, that the widow is a soul that has put off the old man, (that is, the devil,) who is her adversary, because she approaches God, the righteous Judge, who neither fears (because He is God alone) nor regards man, for with God there is no respect of persons. Upon the widow then, or soul ever supplicating Him against the devil, God shows mercy, and is softened by her importunity. After having taught us that we must in the last days resort to prayer because of the dangers that are coming, our Lord adds, Nevertheless, when the Son of man cometh, shall he find faith on the earth?