The Old Testament polity consisted of military leaders and the judges. Later the military leaders became kings, but there is no sign of democracy.
When the people got their way, disaster followed.
Unlike their fathers, they quickly turned from the way .... of obedience to the LORD's commands..... the people returned to ways even more corrupt than those of their fathers, following other gods and serving and worshiping them. They refused to give up their evil practices and stubborn ways (Jud 2:17-19).
I am not sure why Christians are so enthusiastic for democracy. People power leads to oppression.
If democracy is such a great idea, why did God not give his chosen people a democracy.