Justin Martyr on Christians, Sacraments, and the Church from the series Justin Martyr: The Man and His Theology by Robert Alan King is a booklet with over 8,500 words. This booklet discusses Justin's views on what it really means to be a Christian, the practice and purpose of the sacraments of baptism and the Eucharist, and the administration and functions of the Christian church. It also provides insight into an actual Sunday service, where we discover that it is very similar to how we worship today. Robert Alan King is an ordained minister through Calvary Chapel who has spent years studying the writings of Justin Martyr.