Belgic Confession - 1561
The Belgic Confession, written in 1561, owes its origin to the need for a clear and comprehensive statement of Reformed faith during the time of the Spanish inquisition in the Lowlands. Guido de Brès, its primary author, was pleading for understanding and toleration from King Philip II of Spain who was determined to root out all Protestant factions in his jurisdiction. Hence, this confession takes pains to point out the continuity of Reformed belief with that of the ancient Christian creeds, as well as to differentiate it from Catholic belief (on the one hand), and from Anabaptist teachings (on the other).
Heidelberg Catechism - 1563
The Heidelberg Catechism, written in 1563, originated in one of the few pockets of Calvinistic faith in the Lutheran and Catholic territories of Germany. Conceived originally as a teaching instrument to promote religious unity in the Palatinate, the catechism soon became a guide for preaching as well. It is a remarkably warm-hearted and personalized confession of faith, eminently deserving of its popularity among Reformed churches to the present day.