I tell you - The Latin Vulgate here adds, "if he shall continue knocking." Though this is not in the Greek, yet it is indispensable that it should be understood in order to the sense. Knocking "once" would not denote "importunity," but it was because he "continued" knocking.

His importunity - His troublesome perseverance; his continuing to disturb the man, and refusing to take any denial. The word "importunity" denotes perseverance in an object, without any regard to time, place, or circumstances - an improper perseverance. By this the man was influenced. Rather than be disturbed he would rise and give what was asked. This is to be applied to God in no other sense than that he often hears prayers and grants blessings even "long after" they appear to be unanswered or withheld. He does not promise to give blessings "at once." He promises only that he will do it, or "will answer" prayer. But he often causes his people long to wait. He tries their faith. He leaves them to persevere for months or years, until they "feel" entirely their dependence on him, until they see that they can obtain the blessing in no other way, and until they are "prepared" to receive it. Often they are not prepared to receive it when they ask it at first. They may be proud, or have no just sense of their dependence, or they would not value the blessing, or it may "at that time" not be best for them to obtain it. But let no one despair. If the thing is for "our" good, and if it is proper that it "should" be granted, God will give it. Let us first ask aright; let us see that our minds are in a proper state; let us feel our need of the blessing; let us inquire whether God has "promised such" a blessing, and "then" let us persevere until God gives it. Again: people, when they ask anything of God, often give over seeking. They go "once," and if it is not granted they are discouraged. It is not so when we ask anything of people. "Then" we persevere; we take no denial; we go again, and "press" the matter until we obtain it. So we should of God. We should go again and again, until the prayer is heard, and God grants what we ask of him.

I say unto you,.... This is the accommodation of the parable; to these words are premised, in the Vulgate Latin version, the following, "if he continue knocking":

though he will not rise and give him, because he is a friend; though mere friendship will not influence and engage him to rise from his bed, at such an unseasonable time, and fulfil the request of his friend;

yet because of his importunity, he will rise and give him as many as he needeth: as he asks for, or more, if necessary: the design of this parable, is the same with that of the widow and the unjust judge, in Luke 18:1 which is to show the force of importunity, where friendship, as here, and the fear of God, and regard of men, which were wanting there, have no influence; and so to encourage to constancy and perseverance in prayer, with earnestness; taking no denial at the hand of God, but still continuing to make pressing instances.

Importunity (ἀναίδειαν)

Only here in New Testament. A very striking word to describe persistence. Lit., shamelessness. As related to prayer, it is illustrated in the case of Abraham's intercession for Sodom (Genesis 18:23-33); and of the Syro-Phoenician woman (Matthew 15:22-28).

I say unto you, Though he will not rise and give him, because he is his friend, yet because of his {b} importunity he will rise and give him as many as he needeth.

(b) Literally, impudence: but that impudency which is spoken of here is not to be found fault with, but is very commendable before God, for he is well pleased by such importunity.

11:8 Because of his importunity. When he should continue knocking and asking. How much more will the loving Father yield to the importunity of his children. Compare Ge 32:28 Ps 55:17 1Th 3:10 5:17 1Ti 5:5 2Ti 1:3.

8. importunity-The word is a strong one-"shamelessness"; persisting in the face of all that seemed reasonable, and refusing to take a denial.

as many, &c.-His reluctance once overcome, all the claims of friendship and necessity are felt to the full. The sense is obvious: If the churlish and self-indulgent-deaf both to friendship and necessity-can after a positive refusal, be won over, by sheer persistency, to do all that is needed, how much more may the same determined perseverance in prayer be expected to prevail with Him whose very nature is "rich unto all that call upon Him" (Ro 10:12).

11:5-13 Christ encourages fervency and constancy in prayer. We must come for what we need, as a man does to his neighbour or friend, who is kind to him. We must come for bread; for that which is needful. If God does not answer our prayers speedily, yet he will in due time, if we continue to pray. Observe what to pray for; we must ask for the Holy Spirit, not only as necessary in order to our praying well, but as all spiritual blessings are included in that one. For by the influences of the Holy Spirit we are brought to know God and ourselves, to repent, believe in, and love Christ, and so are made comfortable in this world, and meet for happiness in the next. All these blessings our heavenly Father is more ready to bestow on every one that asks for them, than an indulgent parent is to give food to a hungry child. And this is the advantage of the prayer of faith, that it quiets and establishes the heart in God.