Introduction When we read Matthew chapter 8, and 9, we could see how great power and authority what Jesus has. The author of Matthew tries to show the authority of Jesus over all things. Especially, Matthew chapter 8:28-34 shows us His authority over the demons’ power. And the end of the story is quite shocked and astonished (32). And it raises some questions that why Jesus permits demons’ request and allows to be destroyed the herd of many pigs? In fact, it is difficult to answer those questions. There are many cases of such things like a great loss or disasters still happen in this time and in this world, but we could not find the answer why. But there is a clear thing that we know through the verse 31, that without the permission of Jesus, the evil spirits could not do and move out themselves from the human bodies to the pigs. Jesus has absolute authority over the demons. In addition, we know that He set the victims free with His mercy by ca