This site presents the historic Reformed confessions and catechisms in their original languages and in translation, arranged so that any two or more versions can be read together in parallel columns — chapter for chapter, article for article, question for question.
When two editions of the same language are shown side by side, a Compare view highlights the wording differences between them.
An “i” beside every edition’s name opens its provenance — source, translator, and a scan of the title page.
1563 · 43 editions
The Heidelberg Catechism (1563), written chiefly by Zacharias Ursinus and Caspar Olevianus, is a warm, personal summary of the Christian faith in 129 questions and answers, divided into 52 Lord’s Days. It treats the believer’s only comfort under three heads: misery, deliverance, and gratitude.
1561 · 17 editions
The Belgic Confession (1561), drafted by Guido de Brès, is a confession of faith in 37 articles. Written under persecution in the Low Countries, it sets out the Reformed faith concerning God, Scripture, sin, Christ, the church, and the last things.
1619 · 12 editions
The Canons of Dordt (1618–1619) are the decision of the Synod of Dordt on the five points disputed by the Remonstrants. Each of the main heads of doctrine sets out the positive teaching in numbered articles followed by a rejection of errors.
