In the ancient world, most religions seemed to see the relationship between God and a group rather than God and an individual.
For example, God made a covenant with the nation of Israel rather than with individual Israelites. God blessed or cursed the entire nation of Israel based on its behavior.
In the polytheistic world it seems to have been similar. The city or nation collectively gave honor to a god and hoped for collective benefits.
The Christian Church might be analogous to the nation of Israel. The Church is the Body of Christ, so each believer might need to relate to God through the Church rather than directly.
For example, God made a covenant with the nation of Israel rather than with individual Israelites. God blessed or cursed the entire nation of Israel based on its behavior.
In the polytheistic world it seems to have been similar. The city or nation collectively gave honor to a god and hoped for collective benefits.
The Christian Church might be analogous to the nation of Israel. The Church is the Body of Christ, so each believer might need to relate to God through the Church rather than directly.