'Of This World' in the Bible

For the wisdom of this world is foolishness with God. For it has been written. He taketh the wise in their own craftiness.

not at all with the fornicators of this world, or with the covetous and the extortioners, or with the idolators; since you ought therefore to come out of the world.

and those using the world, as those not using it thoroughly: for the fashion of this world is passing away.