The word “world” may be used to refer to the physical world (John 1:10) or to the people of the world collectively (1 John 2:2). In those senses, there is nothing immoral about Christians loving the world. However, John also uses the word “world” to refer to the evil, organized system under Satan, which operates through unbelieving people who have been taken captive to do his will. This demonic system is chiefly characterized by the lust of the flesh, the lust of the eye, and the boastful pride of life.