'Power' in the Bible

And ye know that with all my power I have served your father.

It is in the power of my hand to do you hurt: but the God of your father spake unto me yesternight, saying, Take thou heed that thou speak not to Jacob either good or bad.

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.

Reuben, thou art my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power: