Even in theocratic Ancient Israel, the Bible taught “SEPARATION OF CHURCH AND STATE.”
2 Chronicles 19:11
And behold, Amariah the chief priest is over you in all matters of the LORD; and
Zebadiah the son of Ishmael, the governor of the house of Judah, in all the king’s matters
and the Levites will serve you as officers.
Deal courageously, and may the LORD be with the upright!”1