Biblically, chemical dependency boils down to being enslaved to drugs and alcohol and a person can't get out of it without God.
You will meet "users" and "abusers", it is crucial to know the difference.
It is not necessarily sinful to use alcohol but its wrong to abuse.
Addiction = when getting drunk or high progresses to the point where you have no choice over it anymore.Question: How do you know when you are enslaved?
Answer: You keep getting the consequences for using and they get worse and worse but you keep using.We have to be willing to get honest with ourselves and accept on an emotional level that we are powerless over drugs.Ephesians 1:18,19 I pray also that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in the saints, and his incomparably great power for us who believe. That power is like the working of his mighty strength,