Fuck this "in God's hands" shit. That is just a cop-out. People leave it up to God because they are hesitant to get involved. Well we all know how much attention God pays to his followers, so why should he pay more attention to those that don't?
You want to visit him in jail or you want to visit him in the morgue? That is the future. Oh, no one knows how long it will take before that conclusion is reached, but it will come.
It is true that you can't help someone who doesn't want help, but you can plant the seed in their heads that they need help. Unfortunately, it isn't they don't want help.. it is that they don't want the embarrassment of asking. And their ego won't allow them. Rather than starting new from zero and building their life back up, it is just easier to coast along at zero day to day.
Most people never even reach the bottom. They end up dead before they hit it.
Also you have to take into consideration that if he does get help and cleans himself up, the environment that he is coming back to is drug infested and will surely claim him again. it is better if they all do it at one time together.
I wish there was a proven success formula of Step 1, Step 2, etc.. that I could give you. But there isn't. All you can do is what you can do. Trying is the most effort you are capable of producing and no one can begrudge you that. Not even yourself when you end up at the funeral kicking yourself for not have trying to help in the past. Sometimes you don't try to help them for their benefit but for your benefit. Just knowing you did your best to make a difference and gave an honest heartfelt attempt to get him on the road to recovery is what you need to accept the outcome in your own heart.
I know a lady in her mid 30's hooked on Oxy. Lives with her mother. Has no job, no desire to get a job. Has no hobbies, no friends, no interests. I look at her and all I see is a shell of a person. Someone who wakes up each day only because they have to in order wait the rest of the time their lives have out. They are living just to die. Their lives have no other purpose. They will leave nothing behind. One day they will just be gone.
And no one will really care.