Many do not come since they feel they are praying and living right. The altar is not only to get right in prayer. It is to minister and use your gift and help others. God gives you gifts of the Spirit so that you can give of them to others. It is simply vessel to vessel.
Gift is transformed into gift.
You receive gift of healing so that you can give to others. Who seeing Peter and John about to go into the temple asked an alms. And Peter, fastening his eyes upon him with John, said, Look on us. And he gave heed unto them, expecting to receive something of them. And he leaping up stood, and walked, and entered with them into the temple, walking, and leaping, and praising God.