I have had a number of conversations where in Christian circles where I have brought up the concept of Christian liberty. The concept that unity in small matters is more important than arguing the finest hairs of truth is found throughout scripture.
Almost immediately there comes an objection. The idea brings in relativity. We will keep arguing every tiny detail, because we who are we to decide what is important or not.
At times the attempted piety of persons is an excuse to not take the bible seriously. The bible calls us to seek wisdom. To actually think and make decisions.
The bible calls us to wisdom. It does not call us to mindlessly refuse to decide what is important. The bible calls us to think and discern as image bearers of God.
The bible is not a call to a mindless life of acting as if every thing is of the same importance. We cannot be faithful to scripture if we refuse to seek wisdom.
We are not seeking wisdom if we do not take seriously what the bible takes seriously. The call to unity in the church requires that we seek wisdom.
Of course truth is important. It takes no wisdom to see this. It takes wisdom to see how unity and truth relate. And how not all truth is worth fighting over.
We cannot piously reject the teaching of scripture. And refuse to incorporate concepts into our thought that scripture teaches.