The end or purpose of Christian liberty is not to smoke or drink; liberty is given for the pursuit of holiness. Those who wave the banner of Christian liberty so that they might do whatever they might want to do have not understood the doctrine at all. The point is not to drink or smoke or dance according to our own whims, in the light of our own wisdom, but do do whatever we do before the Lord, with the increase of joy and holiness obvious to all. Our guide on how this is to be done is the Bible, and not our pet evangelical traditions. And this is why the mature may drink wine to the glory of God, and the same cannot be applied to young men who may be more concerned about looking cool than being holy.
– Douglas Wilson, Future Men, 77.