If your house were on fire and your husband refused to leave, at some point you would grab your 13 year old and run like heck. Meth addiction is likely going to burn your figurative house down to the ground.
Active addicts and those new to recovery are not competent to parent.
Most local Police have a special protocol for dealing with Meth addicts because they are prone to spontaneous violence. That he may never have been violent before is not a good predictor for the future, as he gets deeper into the Meth scene.
There is nothing you can say or do that's going to cause him to stop. You are not that powerful. None if us are. He is not going to stop until he's ready, or sad to say, dead. It is critical to understand he is not using at you. It's not personal though I know it feels that way, right now. His addiction has rewired his brain to protect and sustain it, at all costs.
Addiction is progressive and will likely, at some point, cause him to become unemployed/unemployable. What can you do, right now, to protect your minor child, yourself and your assets? Seeking legal advice is highly recommended.
Please know:
You did not cause this.
You cannot control this.
You cannot cure this.
Meth is a horrible, horrible drug.