Bible Verses About Prayer: With importunity

And he said to him: Let me go, for it is break of day. He answered: I will not let thee go, except thou bless me.

Yet if he shall continue knocking, I say to you, although he will not rise and give him because he is his friend; yet, because of his importunity, he will rise and give him as many as he needeth.

And I say to you: Ask, and it shall be given you: seek, and you shall find: knock, and it shall be opened to you.

And he spoke also a parable to them, that we ought always to pray and not to faint,

Saying: There was a judge in a certain city, who feared not God nor regarded man.

And there was a certain widow in that city; and she came to him, saying: Avenge me of my adversary.

And he would not for a long time. But afterwards he said within himself: Although I fear not God nor regard man,

Yet because this widow is troublesome to me, I will avenge her, lest continually coming she weary me.

And the Lord said: Hear what the unjust judge saith.

And will not God revenge his elect who cry to him day and night? And will he have patience in their regard?