How Deliverance Can Fail
The most common obstacles
Not enough faith - Jesus said that some
demons only come out after prayer and fasting, which builds your faith to the
higher levels required to cast out some of the stronger demons.
Mark 9:29, "And he said unto them, This kind can come forth
by nothing, but by prayer and fasting."
Unwillingness to be
delivered or let go - if the person is not willing to give up certain things
in their life that are giving the enemy the legal right to remain, or they are
not willing to let go of certain demons, there's little you can do to drive out
those demons.
Legal rights were not
broken - if you try to go about a deliverance without first
breaking off any legal grounds given to the enemy, you will almost certainly
fail, and even if you are successful, the demons will almost certainly come
back with even more demons, making a worse mess then before.
Important steps were not
taken - there are some steps that can make a day and night
difference in a deliverance session, such as getting a hold of the demons names
and commanding them by name. If you simply command all the demons present to
leave, you will likely be ignored; it's like somebody trying to get your
attention in a crowd by yelling "Hey you!" Many times when Jesus cast
out demons, He referred to them by name, and He got their attention in quick
order. Not every deliverance session requires you to refer to the demons by
name, but it sure helps when you are able to get ahold of their names, either
through the person your ministering to (if they accepted a spirit guide by the
name of Daemon, then they would obviously know the name of one or more spirits
that are in them), another way to get the name is by the symptoms they are
causing, for example, extreme guilt feelings are often caused by a spirit by
the name of guilt, and other ways to get their names are by a word of knowledge
from the Holy Spirit, or from the demons themselves (if they manifest, ask them
for their name).
The person hasn't
accepted Christ - trying to cast a demon out of an unbeliever is like
trying to kick somebody out of their apartment when their rent is paid up; it
isn't an easy task and even if you did succeed, they are bound to come back
with several more even worse evil spirits as Jesus warned in Matthew
12:43-45. This problem can be easily solved by asking the person if they
would accept Jesus, with a mouth confession as the Bible says, and believe with
their heart in the Lord Jesus Christ.
Romans 10:9-11, "That if thou shalt confess with thy mouth the
Lord Jesus, and shalt believe in thine heart that God hath raised him from the
dead, thou shalt be saved. For with the heart man believeth unto righteousness;
and with the mouth confession is made unto salvation. For the scripture saith,
Whosoever believeth on him shall not be ashamed."