Theodore Beza's A Clear and Simple Treatise Respecting the Lord's Supper (1559) advances a tireless defense of the Reformed perspective on the Lord's Supper, responding chapter by chapter to specific arguments raised against John Calvin by his Lutheran opponent, Joachim Westphal. Beza makes great use of the concept of metonymy, or a figure of speech, in his interpretation of the words of institution, yet he equally champions the position that the Lord's Supper is not a bare symbol and that in it we have true communion with the risen Christ. And like Calvin, Beza refers extensively to the church fathers, especially Augustine, in defense of his position.

This often-overlooked treatise marks some of the major differences between the Reformed and the Lutheran movements during the so-called second generation of the Reformation. A critical issue at the time, sacramental theology was at the forefront of the original break with Rome and prevented the various Protestant movements from uniting. Its translation into English from the original Latin provides a wider opportunity for those interested in these movements to learn more about some of the substantial issues of the period.