No I didn't. I used it as an example. Two very similar teachings, both sola scriptura, that end in one determining the other is from Satan. Based on their sola scriptura interpretation.
This is an example that sola scriptura is ultimately not based on the same authority, else it would not result in this example. I could have used other examples.
it's a subset that doesn't cause issue among Protestants as it relates to salvation
Certainly it does. It says Paul's Gospel is different from Christ's (except that it teaches Christ said follow Paul's). The whole point is that Paul teaches a different soteriology than Christ's Kingdom of God.
And examples are found in other sola scriptura branches, the salvation by election branch vs. the others for example.
Actually... no. A Protestant who believes in Dispensationalism will not dispute with someone who is not a Dispensationalist on how one is SAVED -- by faith alone through Christ alone... they may argue about the rapture as to whether or not it's pre-trib, post-trib etc. -- but the issue of saving faith is common.
Sorry if I wasn't clear.
Hoss