1 Peter 1:14-16
As obedient children, do not conform to the evil desires you had when you lived in ignorance.But just as he who called you is holy, so be holy in all you do; for it is written: "Be holy, because I am holy."
No matter how much you are tempted, do not ever turn to please the evil desires within you. Put it to death! If you don't, it's going to kill you. Do not follow any bad examples of lives in bondage to the sinful nature of the Devil in them. They may claim that they know God, but you must strictly tell them that you not only know God, but you know that one should not obey the sinful nature of the Devil in them if they believe in God. Never ever follow their rotten examples. They would claim that they know God, but their actions would show that they actually do not know what God requires of them. Knowing God and knowing what God requires of you to do to the sinful nature of the Devil within you, will lead you to the next eternal step forward and that is, the formation of the divine nature of Christ within you. If that isn't happening, then there is something terribly wrong with what you believe. If you keep going to the world seeking satisfaction, then Christformation will never occur in you.
1 John 2:15-17
Do not love the world or anything in the world. If anyone loves the world, the love of the Father is not in him. For everything in the world--the cravings of sinful man, the lust of his eyes and the boasting of what he has and does--comes not from the Father but from the world. The world and its desires pass away, but the man who does the will of God lives forever.