Assurance: Works and Grace? Calvin - "Nay!"

"The question under discussion was, whether observance of the law was to be exacted of the Gentiles. He says it ought not, because there is no other salvation in the Christian Church than through the grace of Christ, and there never was any other. (Acts 4:12.) And justly; for, as Paul says, the promise will not be secure unless it depends on the grace of God and on faith. (Romans 4:16.) Will they pretend that he is here, too, speaking of preceding merits? Nay, he declares that the greatest saints can have no assurance of salvation, unless it repose on the grace of Christ. He therefore abolishes faith who does not retain his as the only righteousness, which exists even until death."

John Calvin, Acts of the Council of Trent with the Antidote