So there is the key: "acknowledge and accomodate" without "advocating"!
That's always been exactly how I read the First amendment!
Religious freedom is not about distinguishing acknowledging religion from advocating religion. If the test to determine what is permissible is whether the law or other official act acknowledges God, then a death warrant ordering the exceution of an individual for his religion would meet the test just as long as it contained an acknowledgement of God.