If you read into this Biblically, then she's simply using Judas as a personification of her sin. She's saying that she follows and loves Jesus, but Judas is the "demon" (sin) she clings to. All humans cling to sin, we can't help it. So stop saying Gaga is the Anti-Christ, or illuminati, or satanistic, or anything like that. Do I like her? No, but I can respect and relate to this song.