It's the deep, fundamental bedrock of hypocrisy upon which religion is founded. Consider: no creature can be said to worship if it does not possess free will. Free will, however, is FREE. And just by virtue of being free, is intractable and incalculable, a truly Godlike gift, the faculty that makes a state of freedom possible. To exist in a state of freedom is a wild, strange thing, and was clearly intended as such. But what to the religions do with this? They say, Very well, you possess free will; but now you must use your free will to enslave yourself to God and to us. The effrontery of it! God, who would not coerce a fly, is painted as a supreme slavemaster! In the fact of this, any creature with spirit must rebel, must serve God entirely of his own will and volition, or must not serve him at all, thus remaining true to himself and to the faculties God has given him.
~ Robert Sheckley