Today I would like to look at Romans 12 verse 2
2)Do not conform yourselves to the standards of this world, but let God transform you inwardly by a complete change of your mind. Then you will be able to know the will of God — what is good and is pleasing to him and is perfect.
The ways of this world is very often selfish and bad and for that reason many Christians do not want to act as the world does. This differences should however not be superficial, not only must our acts be different, but also our hearts. It does not help to avoid the acts of this world, and stay selfish, jealous, stubborn etc. God must change us by changing our thoughts, then we will become sensitive to the will of God.
Have a wonderful day.