"The root of evil is not in the nature of the world, but in moral wrong--in a desertion from God." Sin and wickedness arise from the misuse and perversion of things which are not in themselves evil.
Christianity calls for a break from the wickedness of the world.

It calls upon man to give up his sin, to deny, or break with, the evil of which he is guilty.

But it does not expect man to do this in his own strength alone--God Himself comes to his rescue.

Unlike Buddhism, it does not stay at the denial of the world, but calls upon man to become a citizen of a higher world.

This gives a new impetus to the higher life; man finds a great task--he has to build a kingdom of God upon the earth.
This demands the highest efforts--he must fight to gain the new world, and must keep up the struggle to retain what he has gained.