"Lord Jesus Christ, Son of God, have mercy on me." Simon Barrington-Ward teaches us how to use the Jesus Prayer (above), and opens up the Bible passages that are crucial to understanding it. This ancient prayer has been known and loved by generations of Christians for hundreds of years. It is a way of entering into the river of prayer which flows from the heart of God: the prayer of God himself, as Jesus continually prays for his people and for the world which he loves.