(mis)Quote on Doctrine

A while ago a friend of mine posted on facebook "doctrine. Discuss" to which I replied:

It's like blood: meant to help you live. If you just store it up and collect it, your weird (and you might not be invited to parties).

My friend saw me at Engage 2010 and told me that he cited me and that quote is in some resource that he was writing (I think it was for Moore college). So to anyone who is studying there, or anyone who comes across this blog post, I just want to be clear: I stole that quote. It is not mine, it is from Kevin DeYoung - from a talk he gave in at the Next 2010 Conference on scripture (mp3 link) around the 29:55 mark.