1 John 4:4-5

Little children (believers, dear ones), you are of God and you belong to Him and have [already] overcome them [the agents of the antichrist]; because He who is in you is greater than he (Satan) who is in the world [of sinful mankind]. They [who teach twisted doctrine] are of the world and belong to it; therefore they speak from the [viewpoint of the] world [with its immoral freedom and baseless theories—demanding compliance with their opinions and ridiculing the values of the upright], and the [gullible people of the] world listen closely and pay attention to them.