You need to re-read Steaver's post. Here is what you declared to be false:
Let it be noted that all the epistles of Paul were written either to churches or to pastors of churches. The general epistles also were written to Christians. There is not an epistle that was written that was written to a non-Christian.
Your reply here agrees with what I said, there was a specific audience intended...the author didn't write it with every believer throughout time as its recipient as steaver is implying. No idea where you keep getting epistles written to non christians from.