'In the World' in the Bible

Love not the world, nor the things in the world. If any one loves the world, the love of the Father is not in him;

for all that is in the world, the desire of the flesh and the desire of the eyes and the pride of life, is not of the Father, but is of the world.

and every spirit which does not confess Jesus is not of God. And this is the [spirit] of anti-christ, of which you have heard that he is coming, and he is now in the world already.

You are of God, little children, and have overcome them, because greater is he that is in you than he that is in the world.