here is a evidence..
1Then Jesus told his disciples a parable to show them that they should always pray and not give up. 2He said: "In a certain town there was a judge who neither feared God nor cared about men. 3And there was a widow in that town who kept coming to him with the plea, 'Grant me justice against my adversary.'
4"For some time he refused. But finally he said to himself, 'Even though I don't fear God or care about men, 5yet because this widow keeps
bothering me, I will see that she gets justice, so that she won't eventually wear me out with her coming!' "
Also..
5Then he said to them, "Suppose one of you has a friend, and he goes to him at midnight and says, 'Friend, lend me three loaves of bread, 6because a friend of mine on a journey has come to me, and I have nothing to set before him.'
7"Then the one inside answers, 'Don't bother me. The door is already locked, and my children are with me in bed. I can't get up and give you anything.' 8I tell you, though he will not get up and give him the bread because he is his friend, yet because of the
man's boldness he will get up and give him as much as he needs.
9"So I say to you: Ask and it will be given to you; seek and you will find; knock and the door will be opened to you. 10For everyone who asks receives; he who seeks finds; and to him who knocks, the door will be opened.
Also,another wrestler named Hannah..
10 In bitterness of soul Hannah wept much and prayed to the LORD. 11 And she made a vow, saying, "O LORD Almighty, if you will only look upon your servant's misery and remember me, and not forget your servant but give her a son, then I will give him to the LORD for all the days of his life, and no razor will ever be used on his head."
17 Eli answered, "Go in peace, and may the God of Israel grant you what you have asked of him."
lets not forget another who knocked..and wrestled to live longer.
2Kinks20:2
Hezekiah turned his face to the wall and prayed to the LORD, 3 "Remember, O LORD, how I have walked before you faithfully and with wholehearted devotion and have done what is good in your eyes." And Hezekiah wept bitterly. (there is some good ole pouring out of the soul)
So anyway,seem like we are to wrestle...
Knock,seek....you get the picture..(scripture)