Jesus and the Apostles, the New Testament authors, treat the Old Testament with authority and as having one meaning. They do not treat scripture with any degree of interpretative latitude. They also make certain application, applying the Bible with complete certitude. God means one thing. Then He doesn't deny Himself.
The interpretation and application of scripture fits the reality of the world. There is only one version of what has occurred from the beginning of creation until now, not two. You don't get to have reality be whatever you want it. It really is what it is. Only what it is.
People can have their own reality, their own interpretation, and their own application. It's all very flexible. What's certain is that people don't want to be certain. Uncertainty is the enemy of authority. "I'm not sure" is a convenient excuse.
From the date of the founding of the Jamestown colony until now, there was a point in at least United States history where philosophy or belief and practice took a turn toward diminished confidence in applying the Bible to life and culture. I'm not saying that nothing was unsettled in people's minds. That characterizes a sin-cursed world. There will be doubt in a sin-cursed world.
Premodern thinking, however, saw truth, goodness, and beauty as certain. The standard was an unwavering, single-minded, solid, stable vision. God created a world, breathed a Word for that world, and fashioned a man to live in it. Man could understand the world through the Word which He inspired for faith and practice. It could be understood, known, believed, applied, lived, and practiced by faith.
Fear and repulsion of applying scripture always existed, but greatly multiplied with modernism. The world opposes God's Word. With application comes scorn and persecution. The nature of the flesh is to do what it wants to do.
We arrive today at music, dress, entertainment, and recreation, and believers can't or better won't apply the Bible like days past. They don't have the confidence, which starts with their uneasiness with scripture itself. Rock music, as an example, could never have been contemplated for worship. Now the Bible can't be applied there. If you do, you're now considered adding to scripture or reading into it something it doesn't say. You can't apply the Bible to music. You can't give any objective standard for dress.
God is not being honored because scripture is not being applied. It isn't being lived. When it isn't applied, it is being disobeyed. God isn't being loved.