I believe in the seven churches as ages...
Ephesus - Messianic - Beginning with the Apostle to the Circumcision, Peter
Smyrna - Martyr - Beginning with the Apostle to the Un-Circumcision, Paul
Pergamos - Orthodoxy formed in this time... Pergos is a tower... Needed in the dark ages
Thyatira - Catholicism formed in this time - The spirit of Jezebel is to control and to dominate.
Sardis - Protestantism formed in this time- A sardius is a gem - elegant yet hard and rigid
Philadelphia - Wesleyism formed in this time - To be sanctioned is to acquire it with love.
Laodicea - Charismatic movement formed in this time - Beginning with DL Moody, the first to make money off of ministry
I believe that the Calvin doctrine come out of the Sardisean church age. In the will of John Calvin it states...
"First, I give thanks to God, that taking compassion on me whom he had created and placed in this world, he not only delivered me by his power out of the deep darkness of idolatry, into which I was plunged, that he might bring me into the light of his gospel,
and make me a partaker of the doctrine of salvation, of which I was most unworthy; that with the same goodness and mercy he has graciously and kindly borne with my multiplied transgressions and sins, for which I deserved to be rejected and cut off by him; and has also exercised towards me such great compassion and clemency, that he has condescended to use my labor in preaching and publishing the truth of his gospel. I also testify and declare, that it is my full intention to pass the remainder of my life in the same faith and religion, which he has delivered to me by his gospel; having no other defense or refuge of salvation than his gratuitous adoption, on which alone my safety depends." - John Calvin (
Calvinism Soteriology Topics)
John Calvin sought to lay doctrines on salvation, in which if interested, you can spend your lifetime studying. As this is Sardisean age doctrine, the Lord also had a few things to say...
4 Thou hast a few names even in Sardis which have not defiled their garments; and they shall walk with me in white: for they are worthy.
5 He that overcometh, the same shall be clothed in white raiment;
and I will not blot out his name out of the book of life, but I will confess his name before my Father, and before his angels. - Revelation 3
If you want to test whether or not someone is true blooded Sardisean just try to threaten their salvation or try to convince them that they are not eternally secure!