A friend with God, not with the world

James 4:4, KJV: "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." 
Romans 12:1  be transformed by the renewing of our mind to be a friend of God, it is necessary to renew your mind with the Word of God and the presence of God  "faith cometh by hearing and hearing by the word of God