15 Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him.
Matthew Henry said this:
The heart of man is narrow, and cannot contain both loves. The world draws down the heart from God; and so the more the love of the world prevails the more the love of God dwindles and decays.2. From the prohibition of worldly love or lust; it is not ordained of God: It is not of the Father, but is of the world,