Ligon Duncan - How Can a Busy Pastor Celebrate the Lord's Day?

I came across a short video (sorry, it's not embeddable) in which Ligon Duncan explains how, as a busy pastor, he finds rest and refreshment in the Lord's Day.

[youtube http://www.youtube.com/watch?v=C15dOrBtPTs&fs=1&hl=en_US&rel=0&hd=1]