Well if you want to get really technical you can eat it and get high, what about that? Here's my personal view on it, and I speak as someone that absolutely LOVES weed and has since I first tried it at 15.
I smoked everyday since I was 15, save days I was locked up and a little while trying to get off a pain pill addiction. I honestly don't see the act of smoking a joint as sinful. First of all like the guy said before God gave us everything on earth to have and enjoy responsibly, also in
Tim 4:4
"3 They will prohibit marriage and require abstinence from certain foods that God has created to be received with thanksgiving by those who believe and know the truth. 4 For every creation of God is good, and nothing that is received with thanksgiving should be rejected, 5 because it is sanctified by the word of God and prayer."
There are a few more verses I could use, but I am not simply trying to "justify" my own weed use or anyone elses, just trying to share my journey thus far. That all said I have put it down and no longer use it now, mostly because I didn't use it "every now and then", I smoked everyday from sun up to the time I went to sleep. It was no doubt a false idol in my life, even after a radical conversion. I also very much believe in the sanctification talked about in this thread too.
It really came down to this, first I really knew I smoked way too much, second I knew that I would never be able to just smoke every now and then, and third and most important I prayed and felt like God pretty much told me "If you want Me to use you to your full potential it's time to put it down, if you want to stay where you are then keep smoking. I'll still love you, you're still saved, but if you want Me to use you then it's time to let go". So when I hear "I don't see how anyone can smoke and call yourself a Christian" I have to strongly disagree with that because I did smoke and I was a Christian. How can you judge someones salvation in that way and call yourself a Christian? See how easy it is to do that?
I personally made the choice I want to serve God and be as effective a witness as He can make me, but that's my walk with Him and I don't project my walk or actions onto others like I know what they should be doing or where there walk with Him is at this point. Within a week of putting it down I was confronted with an opportunity to go to the local county jail to minister to the inmates, started helping out in Sunday School, and had a few friend that came to town and I got to talk with. It was just God confirming what He told me. I guess my whole point is that I feel smoking is lawful but not beneficial, at least to me, and even more than that I never wanted it to cause anyone to stumble. Like if I'm sharing the gospel and someone is really into it and then finds out I smoke then just writes me off as another hypocritical Christian and just turns away. So I guess in ways I agree with everyone on both sides of this debate. Man am I going liberal?