Adoption and John Piper

Stumbled across these today, after first reading a quote somewhere out in the blog world:

A short video commentary: http://www.youtube.com/watch?v=ZgNXQ2CazUg
(For you Valley folks, he references Ephesians!)

And for those with more time, a longer read: http://www.desiringgod.org/ResourceLibrary/ConferenceMessages/ByDate/1991_Adoption_The_Heart_of_the_Gospel/