Verses in which Christ refers to Satan as "the prince of this world":
John 12:31: "Now is the judgment of this world: now shall the prince of this world be cast out."
John 14:30: "Hereafter I will not talk much with you: for the prince of this world cometh, and hath nothing in me."
John 16:11: "Of judgment, because the prince of this world is judged."
Paul refers to him similarly in Ephesians 2:1-3: "And you hath he quickened, who were dead in trespasses and sins; 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: Among whom also we all had our conversation in times past in the lusts of our flesh, fulfilling the desires of the flesh and of the mind; and were by nature the children of wrath, even as others."