This adjective (from κόσμος, 'world') describes what pertains to the world or universe, and in NT usage specifically what is earthly, temporal, or secular as opposed to heavenly or eternal. Titus 2:12 speaks of renouncing 'worldly passions' (κοσμικὰς ἐπιθυμίας)—desires oriented toward this present age. Hebrews 9:1 refers to the 'earthly sanctuary' (σκηνὴ κοσμική, or possibly 'worldly regulations') of the old covenant. The term isn't necessarily negative in itself—it simply denotes what belongs to the created, temporal order—but it often contrasts with what is spiritual, eternal, or heavenly.