What does the Holy Spirit say to us? That ALL of us as believers are forever forgiven and made righteous by the spilling of Jesus' perfect blood in His eternal sacrifice. No believer is bound by the judgments or condemnation of others. God has already declared the final verdict in his New Covenant of grace.
Whereof the Holy Ghost also is a witness to us: for after that he had said before, This is the covenant that I make with them after those days, says the Lord, I put my laws into their hearts, and in their minds I write them; And their sins and iniquities I remember no more (Heb 10:15-17).
But to me, that doesn't make him a non-Christian any more than Peter was right after the Resurrection.
Peter did not fully understand God's Will, but he was still a Christian the moment he saw Christ had risen.
If you recall in the Scripture, Peter received the sign that compelled him to accept pagan Christians.
I agree that Peter was misguided to demand Old Testament orthodoxy.
But ... was Peter a non-Christian prior to that sign?
He was flawed but yes, Christian, just as literalists who think that the earth was created in six [or seven] solar days.
[Note that the Sun was not created until the third ‘day’.]
Yes; I know. I was saved when I was 10 after one of Dad’s sermons, attended Seminary, was married a minister, and am active in our Baptist church.
Re “jury still out”: When it comes to SDA, I’ve known a few who were questioning the SDA tenets and did “believe on the Lord Jesus Christ” in order to be saved. They got into the Bible and questioned the focus on “works” and legalism over grace. I believe it’s possible they may be saved. Since we really don’t know precisely what is in any person’s heart (well, we DO know some are overtly evil, especially in D.C.!) we may have to wait until Heaven to know if these people settled the status of their salvation. For those who may have been in a state of transition when I knew them, the jury is out; I just don’t know for sure.