Yochanan 8:44

You are from the Av of you, HaSatan, and the ta'avot of your Av you want to do, for that one was a rotze'ach from Bereshis, and he has not taken a stand in HaEmes, because HaEmes is not in him. When he speaks the sheker, he speaks naturally, because he is a shakran (liar) and the av of it.