Jesus encounters two fierce demoniacs upon reaching the East shore of the lake and delivers them. In doing this, He allows the demons to enter a herd of “many” swine (2,000), causing them to drown in the lake. The whole nearby city asks Him to leave. One of the freed men asks to go with Jesus, but he is told to stay and testify.
Jesus visits the district of Gadara (or Gerasa). While there, He saw many Gentiles there who were called Gadarenes (or Gerasenes). Jesus encountered a man whose body was possessed and tormented by demons, and in order to release this torment, Jesus commanded the demons to come out of him.
These demons knew that Jesus was the Son of God and that one day He would judge them; therefore, they were angry He came to interfere with them before the appointed time. Jesus commanded the man to tell Him his name so that he might see how great a power of evil that has possessed him.
The demons saw the judgment that was nigh unto them; therefore, they begged Jesus not to send them immediately away to the place of punishment just yet. They decided they wanted to still be within living things; therefore, if they could not be in a man’s body, they would rather enter into animals, such as pigs. Jesus met their request; however, in entering the many swine, the swine went mad and drowned in the sea. This was proof of His Power over demons.
With the swine drowning, villagers were concerned over their farms & what might happen if Jesus remains; therefore, He was asked to leave. The man was left with the ability to spread the good news around the area.
Since these people were Gentiles, men did not have to keep quiet about the miracle (unlike in the Jewish communities where people were instructed to keep quiet about the miracles so Jesus is not quickly taken in, or attracting curiosity or people needing entertainment).
What can we learn from this?
The life of one man is more important to Jesus than 2,000 some swine.