“WHICH IS SIMPLE —BELIEF IN JESUS AS THE SON”
Two men with demons ran from the tombs to see Jesus they said to him:
Matthew 8:29 King James Version (KJV)
And, behold, they cried out, saying, What have we to do with thee, Jesus, thou Son of God? art thou come hither to torment us before the time?
The two demons obviously believed Jesus to be the Son of God.
Are they saved?
RSVCE 8:29 gives a clear and full teaching in regular English.
Only mortal Men and Women are saved through belief in Christ. That was easy.