cool so do you think there is truth in the Bible Presbyterians who broke from the OPC? or in the PCUSA from whose parent group the OPC broke from?
Of course. While no church on earth is perfect, those denominations, along with most every Protestant denomination, preach the truth of salvation by God's grace alone through faith alone in Jesus Christ alone, as Scripture teaches us.
None of which Rome believes, to its everlasting discredit.