You Believe in Jesus... But Still Sin? The Devil Doesn't Want You to Know the Real Reason Why. Have you ever wondered— Why is it that you believe in Jesus, you pray, you repent, you even shed tears... but the same sins keep coming back, over and over again? You genuinely love God, but you still get angry, feel jealous, say the wrong things, and fall into the same old traps. And so you ask, "Lord, why can't I ever change?" The Apostle Paul had the exact same struggle: "For I know that in me (that