 Sometime between 1610, and the official proceeding of the Synod of Dort (1618), the Remonstrants became persuaded of conditional preservation of the saints, and of the possibility of apostasy, which is that a true believer is capable of falling away from faith and perishing eternally as an unbeliever.They formalized their views in "The Opinion of the Remonstrants" (1618).In the "Confession", the Remonstrants simply confirmed that opinion in several ways.