Good evening, morning, or day,
I'm 16, but I've been very strong in my faith for years. My mother is also extremely strong in her faith, but recently, she's turned to some alternative methods of dealing with life's troubles.
It started almost two years ago. I noticed that she was starting to drink a little heavily every weekend. Then she would do it again on Wednesdays. Then there was a bottle of wine in the house every Monday. Soon, she would bring home hard liquor (Jack Daniels mostly) and the entire bottle would be gone by the end of the day. This was about the time I started to get worried.
Then one day, she broke a tooth. About three days later, my sister (14 now, 12 or 13 at the time) was out with a friend, and she sent me out to do some shopping. I came home and found her smoking marijuana

.
It was very much a shock, but she claimed to have a prescription for the pain (I know now that marijuana generally isn't prescribed for open mouth wounds.) I believed her and kind of let it slide, even though I don't personally believe in use of marijuana as a medicine.
But now it seems that she's continued use of both alcohol and marijuana, coming up with excuse after excuse (stomach problems, benign lump in her breast, etc.). She's still at it, but now it's out of control. She did it while my sister and I had friends over. She came into the house simultaneously drunk and high.
The hardest part is how active she and our family are our church. She sings in the choir, I interpret for the deaf, my sister dances, and my uncle is an elder. But I think about how wrong it is that she's living this secret, substance driven life away from God. I've tried those things, even now, and I know that they're no real substitute for the love, grace, and peace of God.
The only person I've told is my best friend, who is also a strong Christian. After both of us praying separately, we decided individually that tomorrow I should tell her. After seeing this agreement in Christ, I cannot ignore it.
Here's what I need help with the most: God has my back as far as strength and peace. But I was wondering if anyone had advice on how to approach this situation with her, any past experiences, Bible verses to share (with myself or her), and basic tips for coming to this in a God-approved way.
Thank you so much, and God bless you,
Brandon Thomas