1.The world is where the enemy is the prince. The Devil is also known as the prince of air, the father of lies. Worldly things.
John 12:31 Now is the time for judgment on this world; now the prince of this world will be driven out.
Some attributes of a Real Follower
Mark 16:17 And these signs will accompany those who believe: In my name they will drive out demons; they will speak in new tongues;
Matthew 7:20 Yes, just as you can identify a tree by its fruit, so you can identify people by their actions.
1 Cor 13:02 if I have the gift of prophecy, and know all mysteries and all knowledge; and if I have all faith, so as to remove mountains, but do not have love, I am nothing.
2. James 4:4
Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.
Things of the world.
We are to as believers: Matthew 6:33 "But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you"
I hope that's clear. Let me know if you have further questions