Jacob got the victory and the blessing not by wrestling, but by clinging. His limb was out of joint and he could struggle no longer, but he would not let go. Unable to wrestle, he wound his arms around the neck of his mysterious antagonist and hung all his helpless weight upon him, until at last he conquered. We will not get victory in prayer until we too cease our struggling, give up our own will and throw our arms about our Father's neck in clinging faith. What can puny human strength take by force out of the hand of Omnipotence? Can we wrest blessings by force from God? It is never the violence of wilfulness that prevails with God. It is the might of clinging faith that gets the blessings and the victories. It is not when we press and urge our own will, but when humility and trust unite in saying, "Not my will, but thine." We are strong with God only in the degree that self is conquered and is dead. Not by wrestling, but by clinging, can we get the blessing.
Genesis 32:24-32: And Jacob was left alone; and there wrestled a man with him until the breaking of the day. And when he saw that he prevailed not against him, he touched the hollow of his thigh; and the hollow of Jacob's thigh was out of joint, as he wrestled with him. And he said, Let me go, for the day breaketh. And he said, I will not let thee go, except thou bless me. And he said unto him, What is thy name? And he said, Jacob. And he said, Thy name shall be called no more Jacob, but Israel: for as a prince hast thou power with God and with men, and hast prevailed. And Jacob asked him, and said, Tell me, I pray thee, thy name. And he said, Wherefore is it that thou dost ask after my name? And he blessed him there. And Jacob called the name of the place Peniel: for I have seen God face to face, and my life is preserved. And as he passed over Penuel the sun rose upon him, and he halted upon his thigh. Therefore the children of Israel eat not of the sinew which shrank, which is upon the hollow of the thigh, unto this day: because he touched the hollow of Jacob's thigh in the sinew that shrank. (KJV)