Written by Guido de Brès to distinguish Reformed believers from Anabaptists, this confession of 37 articles covers Scripture, the Trinity, creation, salvation, the church, and the sacraments. It became one of the foundational confessions of the Dutch and Belgian Reformed tradition.

Commissioned by Elector Frederick III of the Palatinate, the Heidelberg Catechism covers sin, salvation, and gratitude across 129 questions organized into 52 Lord's Days. It opens with one of the most beloved questions in Christian history: what is your only comfort in life and death?

Produced by an international Reformed synod convened to address the Arminian controversy, the Canons of Dort define the five heads of Calvinist soteriology: total depravity, unconditional election, definite atonement, irresistible grace, and perseverance of the saints.