In modern-day Christianity, Satan, Lucifer, and the Devil are seen as the same being. Langland adheres to an early tradition that considered each of these devils to be separate entities, which is a traditional also adhered to by John Milton in
Paradise Lost. Lucifer is the ex-heavenly being who, out of pride, disobeyed God and was kicked out of Heaven. Satan refers to John 11, when Christ raised a man named Lazarus from the dead. The devils are fully aware of Jesus’ power and status of Son of God—they are clearly trying to find a loophole that will keep Christ out of Hell.