The bible offers a lot of wisdom rather than absolute rules. The reason is that rules have limited applications and face sever difficulties in many situations.
I suspect many of us have worked at companies which have had rules which are good, but then an exceptional case came up and the rule if followed would cause a great deal of difficulty - which causes quite a predicament.
It is interesting in Proverbs (a piece of wisdom literature) there are two proverbs:
Tell a fool according to his folly or he will be wise in his own eyes.
Do not tell a fool according to his folly or he will be wise in his own eyes.
They are complete opposites! Is it an error? No it is a call to wisdom.
There will be a time to confront a foolish person on an error and a time not to. This foolish person may even be the same person.
The reality is that wisdom is very complex and the bible offers a lot of help, but in the end it will need to be cultivated by the individual through prayer, fellowship with believers, devotional reading, and scripture reading.