William Webster writes:

Roman Catholic theology does not embrace the interpretation of salvation and justification as that presented by Scripture and the Protestant Reformers. The Roman Church does teach that we are justified by grace through faith on account of Christ. What is missing, however, is the word alone. By omitting this word the Roman Church redefines grace, faith and justification in a way that undermines and invalidates the teaching of Scripture. This will become clear as we examine the specific definitions given these terms by the official Magisterium of the Church of Rome…

The Roman Catholic teaching on salvation is essentially the same as that preached by the Judaizers. Paul warned the Galatian believers that if they embraced this false gospel they would actually desert Christ (Gal. 1:6). Those evangelicals who would promote spiritual cohabitation with the Church of Rome need to heed to the warning of Paul. He saw no basis for unity with the Judaizers even though they professed faith in Christ. Likewise, there is no basis for unity with the Church of Rome today. If evangelicals jettison the Reformation gospel distinctives for so called unity with Rome they will deny Christ.

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