Under [J. A.] Turretin’s guidance, the Council of Geneva tellingly ruled that candidates for ordination need not subscribe to the Formula or even to the Canons of Dordt, but only to the Bible and Calvin’s Catechism, in order to facilitate union among the Reformed, Anglican, and Lutheran churches. Though the younger Turretin aimed at an enlightened, moderate orthodoxy that would defeat philosophical challenges to Christianity and unite Protestantism, his efforts actually opened the gates for heterodoxy to enter into the citadel of Calvinism.

Joel R. Beeke, Debated Issues in Sovereign Predestination: Early Lutheran Predestination, Calvinian Reprobation, and Variations in Genevan Lapsarianism, 211.