[xzins]

In common language, what exactly are the points of the Lemon Test? Why are they insufficient? What test would you replace them with?

[P-Marlowe]

It consists of three prongs:

1. The government's action must have a legitimate secular purpose;
2. The government's action must not have the primary effect of either advancing or inhibiting religion; and
3. The government's action must not result in an "excessive entanglement" of the government and religion.

If any of these three prongs is violated, the government's action is deemed unconstitutional.

I would replace it with the common sense test. Does this action by the government establish a religion in violation of the first amendment?

First prong: Is a religion established?
Second prong: Is a religion established?
Third prong: Is a religion established?