And because of all this we make a sure covenant, and write it; and our princes, Levites, and priests, seal unto it. Our princes, Levites, and priests, seal unto it - Persuaded that we have brought all the miseries upon ourselves by our transgressions, feeling much and fearing more, we make a covenant with thee to devote ourselves to thy service; to do with us as thou pleasest. From this sealing we learn that at this time the government of the Jews was a mixed aristocracy; composed of the nobles for the civil department, and the priests and Levites for the ecclesiastical.
This was not mixing the Church with the state, or the state with the Church: both were separate, yet both mutually supported each other. The state never attempted to model the Church according to its own mind; because the Church had been founded and regulated by God, and neither its creed nor its ordinances could be changed. The Church did not meddle with the state, to give it new laws, new ordinances, or new officers. Therefore the one could not be jealous of the other. Where this state of things prevails, every public blessing may be expected. In every state God says to the governors and the governed: "Render to Caesar the things which are Caesar's, and to God the things which are God's."
Commentary on the Bible, by Adam Clarke [1831].