The earth; a testing place for mortal men. Figuratively, those people who do not obey God’s commandments.

Mortal existence: In the world ye shall have tribulation, John 16: 33. Fear not unto death; for in this world your joy is not full, D&C 101: 36.

People who do not obey the commandments: I will punish the world for their evil, Isa. 13: 11 (2 Ne. 23: 11). If the world hate you, ye know that it hated me before, John 15: 18-19. The great and spacious building was the pride of the world, 1 Ne. 11: 36. The world is ripening in iniquity, D&C 18: 6. Keep thyself unspotted from the world, D&C 59: 9. He that is faithful and endureth shall overcome the world, D&C 63: 47. Ye shall not live after the manner of the world, D&C 95: 13.

End of the world: I create a new earth: and the former shall not be remembered, Isa. 65: 17 (Rev. 21: 1; A of F 1: 10). In the end of this world, the tares will be gathered and burned in the fire, Matt. 13: 40, 49 (Mal. 4: 1; Jacob 6: 3). My vineyard will I cause to be burned with fire, Jacob 5: 77 (D&C 64: 23-24). The Lord will destroy Satan and his works at the end of the world, D&C 19: 3. The earth shall die, but it shall be quickened again, D&C 88: 25-26. The Lord showed Enoch the end of the world, Moses 7: 67.