I don't think it is narrow-minded to believe that absolute truth is in the Bible. I am a Missouri-Synod Lutheran who was brought up as a Methodist & Presbyterian. From what I recall, teachings in the churches I attended leaned to us being able to interpret what the Bible was saying which left a lot of doors open. Many, many years & life experiences along with much bible study later I truly believe that the Bible is the divine word of God. It is not open to interpretation - what it says is the way it is. Now on some issues that is tough for me and that's when I say "OK God, I don't understand why you say this but you do. I believe & trust in you and know that your wisdom is perfect so that is that." And I don't dwell on it any further but do pray for God to grow my faith. This approach works for me and has helped me find peace with the things I don't understand in the Bible. But I never doubt it.