Christianity would never endorse marijuana for medicinal or recreational use. Research shows that causes permanent IQ loss, i.e. brain damage, in young people and temporary brain damage in adults.

Also, if you know potheads who've smoked a long time you'll notice that they look really old for their ages. You can look 60 when you're 45 if you start smoking early enough.

Potheads are foolish because they think it's OK if it makes them feel good. Besides, it's impossible to self-evaluate when you're under the influence.

Potheads have the reputation as being lazy apathetic losers because that's what long term use tends to cause. Not only that, it deadens the conscience. The worst people I've ever know have been potheads.

(Ephesians 5:18 NIV) Do not get drunk on wine, which leads to debauchery. Instead, be filled with the Spirit.