'Arm' in the Bible

How you have helped the powerlessand delivered the arm that is weak!

then let my shoulder blade fall from my back,and my arm be pulled from its socket.

People cry out because of severe oppression;they shout for help because of the arm of the mighty.

Light is withheld from the wicked,and the arm raised in violence is broken.

Do you have an arm like God’s?Can you thunder with a voice like His?