The way we solve this issue is, as Scripture instructs, to interpret Scripture with Scripture.
But how do we do this? We cannot put Scripture, or the Holy Spirit, on the witness stand.
Do we reason it out or does the Holy Spirit interpret?
I see it like this. If you and I disagree but honestly approach the Holy Spirit with the matter and allow Him to straighten us out, He will do so and there will be no disunity. If we still disagree, then we need to go back to my earlier logic tree and see where we were in error. This is why I see good things, as well as error, in all denominations. We've all fallen short, it's our nature.