It can... ask the same question about the wine Jesus drank at the last supper.... you have to get around this point Jesus didn't sin while consuming school.So smoking weed does not inpair you in anyway? It doesn't cause a dependency?
My premise is that if I smoke a joint, assuming it not super high octane weed, then it isn't any more impairment than if you had had wine and thus if Jesus didn't sin, how can I be be sinning.