How can Muslims claim that they cast out devils when this goes directly against the Word of GOD in the Bible?

Jesus is the one who casts out demons which is now the Holy Spirit. I know because when I became saved he cast a demon out of me right in my living room. I shrieked and everything. Muslims are just confused but Jesus is an interpreter remember and he understands them even when they don't understand themselves. Jesus knows they are confused but some of them have great faith in allah (god) which is no different than us Christians of great faith. He understands and when they get the picture and repent he will forgive them.