King James Version
Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:English Standard Version
in which you once walked, following the course of this world, following the prince of the power of the air, the spirit that is now at work in the sons of disobedience--Catholic Public Domain Version
in which you walked in times past, according to the age of this world, according to the prince of the power of this sky, the spirit who now works in the sons of distrust