There is certainty in Scripture, I only toss out verses that dishonor Him, because Scripture cannot dishonor Him, any verse that dishonors Him is therefore, not Scripture, so I guess you could say, I only accept Scripture. You can be certain that Scripture is True and does honor Him, likewise you can be certain that verses that dishonor Him are not Scripture, for Scripture cannot dishonor Him. This did the LORD so that it might be made manifest who really loves Him, and whose sheep are His, who follow after His voice, and a stranger they will not follow, because they know not the voice of strangers.