Origen

But God, who is the beginning of all things, is not to be regarded as a composite being, lest perchance there should be found to exist elements prior to the beginning itself, out of which everything is composed, whatever that be which is called composite.

What's really neat about the Orthodox church is that it's like walking back in time 2,000 years to the time of the Apostles, when they created these services. You walk into that and it's really like... living it. They have maintained the truth ever since the beginning.