Since time and the Oklahoma C3 Standards and Common Core objectives give a cursory glance of the United States Constitution in Oklahoma American history classes, this list will provide a more comprehensive look into the constitutional powers granted to the Judicial Branch. The Legislative Branch was formed to write laws. The Executive Branch was formed to enforce laws. The Judicial Branch was formed to interpret laws.
Article III, Section 2 outlines the powers of the judicial branch of government. They are limited to six powers. There is nowhere in Article III that allows the Federal Courts of the United States to use international law or laws of specific religions to adjudicate cases filed in the United States. The power of the federal courts was to be limited to these six because the states are sovereign under the Constitution and should be left to handle most law making and interpretation within their own jurisdictions.
More good information about Article III can be found at Find Law.