I am currently taking a graduate level course on the doctrine of the Trinity. One of the first things we learned is that there are two different aspects to the doctrine of the Trinity. One aspect is called "the economic doctrine of the Trinity." The word "economic" comes from the Greek word oikonomia. The economic doctrine talks about "God-as-He-toward-us." It is essentially what has been written in the Bible. The gist of the economic Trinity is that everything we receive from God the Father, we