'Of This World' in the Bible

Yet, when among mature believers we do set forth a wisdom, but a wisdom that does not belong to this world or to the leaders of this world who are passing away;

Not one of this world's leaders understands it, for if they had, they would never have crucified our glorious Lord.

not that you are to stop all dealings with sexually immoral people of this world, any more than with its greedy graspers, or its idolaters, for then you would have to get clear out of the world.

and those who are enjoying the world as though they were not entirely absorbed in it. For the outward order of this world is passing away.