…requires a prophetic word, if there is to be change.
What is durable sin?
Consider the words. Durable means lasting, resistant to change, imbedded in the structure. Sin is any act that causes God pain; rebellion, hatred, lovelessness, infidelity, untruthfulness. If you need a contrast, whether you believe in personalized evil or not, for this moment, imagine a creature of such perversion, such deep depravity, he craves the suffering of all he meets. Then, sin would be anything harmful to others and injurious to God.
Ok, I will edit and finish this some day soon and you can use it in sermon form or bits and pieces later. The phone ringeth. Ask not for whom the phone rings, it rings for me.