The catechism was composed at the request of Elector Frederick III for the purpose of instructing the youth of the day, and guiding pastors and teachers in their teaching duties. Of the Heidelberg Catechism, Schaff writes, "The Catechism is a work of religious enthusiasm, based on solid theological learning, and directed by excellent judgement.... It is the product of the heart as well as the head, full of faith and unction from above. It is fresh, lively, glowing, yet clear, sober, self-sustained. The ideas are Biblical and orthodox, and well fortified by apt Scripture proofs. The language is dignified, terse, nervous, popular, and often truly eloquent. It is the language of devotion as well as instruction. Altogether the Heidelberg Catechism is more than a book, it is an institution, and will live as long as the Reformed Church." [4]