You Shall Worship One God is a fascinating study of the development of sacrificial worship throughout salvation history, a rich meditation on the mystery of the Cross, and a reminder to our busy world that the heart of Christianity is found not in service to our fellow man, but in recognizing the Lord's supreme majesty. Such worship is essential to salvation, says Father Philippe, for it 'makes us die to ourselves in order to proclaim that God is first.' Paperback.