Mark Driscoll Says That Joel Osteen Is His Christian Brother
“Who’s the happiest christian preacher out there? I’ll give you an example his name is Joel Osteen…He is my christian brother, I do believe that…And I’ll tell you what doesn’t bother me about the guy. It doesn’t bother me that he’s got a big church, it doesn’t bother me that that he is on the radio, it doesn’t bother me that he is on the tv it doesn’t bother me that he publishes books, it doesn’t even bother me that he is happy all the time because maybe his spiritual gift is encouragement.”
(Mark Driscoll – “The Rebel’s Guide to Joy”)

You’re damn right he’s his Christian brother. He’s your Christian brother too.
Joel Osteen is a false teacher. Every message he gives is full of heresy proclaiming man as savior. This in fact is a denial that Jesus is the Christ, which makes Osteen a preacher of an anti-christian message. I would be very surprised if he was a true believer. He does not have the spiritual gift of encouragement because the spirit does not encourage self-worship but Christ worship.