No Christianity Without the Trinity

Kevin DeYoung has a good post that the proper understanding of the Godhead is necessary for Christianity.  Here is a snippet:

Yet, when it comes to the doctrine of the Trinity, most Christians are poor in their understanding, poorer in their articulation, and poorest of all in seeing any way in which the doctrine matters in real life. One theologian said, tongue in cheek, “The trinity is a matter of five notions or properties, four relations, three persons, two processions, one substance or nature, and no understanding.” All the talk of essence and persons and co-this and co-that seem like theological gobbledy-gook reserved for philosophers and scholars-maybe for thinky bookish types, but certainly not for moms and mechanics and middle-class college students.

He then goes on to lay out in simple terms what it is, where to find it, and why I should care.