I heard an interesting story recently about how the Church of Satan operates.
Some time ago, a lady who was a former member of the Satanic Church talked about the training tactics of these rulers of darkness. They would send members into a church to listen to the preacher and hear the music then deliberately harden their hearts so that they could never be converted to the Gospel. They would "sear" their conscience, in other words.
The only kind of church they could not go were the Spirit-filled, true Gospel-proclaiming churches that were teaching real, Holy Spirit experiences, liberty, faith and victory through the name of Jesus Christ! She stated that the Satanic Church had lost more people by going to these places where they got saved and delivered from demonic possession, and they can't mess around with them.
Seems the devil is just fine with anyone going to a church that has a form of Godliness as long as there is no power there.