Tridentine Despair
[Melanchthon's] greatest difficulty was the Tridentine condemnation of the assurance of salvation. Trent brings the believer to the point of despair.
Herman Selderhuis, "The Protestant Image of the Council of Trent," in Learning from the Past: Essays on Reception, Catholicity and Dialogue in Honour of Anthony N. S. Lane, eds. Jon Balserak and Richard Snoddy (New York, NY: T&T Clark, 2015), 79