Do not love the world or anything in the world. If anyone loves the world, love for the Father is not in them. For everything in the world—the lust of the flesh, the lust of the eyes, and the pride of life—comes not from the Father but from the world. The world and its desires pass away, but whoever does the will of God lives forever.
Don’t love the world’s ways. Don’t love the world’s goods. Love of the world squeezes out love for the Father. Practically everything that goes on in the world—wanting your own way, wanting everything for yourself, wanting to appear important—has nothing to do with the Father. It just isolates you from him. The world and all its wanting, wanting, wanting is on the way out—but whoever does what God wants is set for eternity.
John would likely warn us in no uncertain terms that to play by the world’s ways is opposite and in fact in opposition to following Jesus. And that it shouldn’t be about our wanting, but about doing God’s will. This can be especially poignant when considering the political sphere. What are Christians advocating for and why? All of that needs to be examined in the light of Christ, who he is and his coming. Of course also what he has done and what that means for us both in terms of believing and doing.
When John is speaking of the world here, he is referring to the world system, the ways of the world. John describes what he means: “the lust of the flesh, the lust of the eyes,…the pride of life.” It’s centered around us, what we/I want, self-centered. It’s not about loving God, or loving our neighbor as ourselves.
John might tell us that Christians ought to advocate for others, be present for others, and not be concerned about ourselves. To seek to live in God’s will which would involve seeking the good of all, and the good of God’s good world. And that both God’s special revelation given to us in Scripture and the gospel, and God’s general revelation in creation worked out in some fashion in science and in other ways should be front and center in this.
We accept the good gifts and abilities God has given us and humankind, while we reject all that which is opposed to God’s will. But that rejection only in the way of Jesus, mostly in terms of what we actually accept and are all about: God’s grace and kingdom come and present in and through Jesus.