Joshua Randall
Legend
Just thought I'd point out that the 4e PH has a set of bullet points for each god, outlining what the gods expect of their clergy (and paladins). These are very much geared towards an adventuring lifestyle, as appropriate for a game about adventuring. 
The 4e DMG has the same thing for the evil gods.
Remember, in D&D, when your god gives you a command, it is probably not something written down a long time ago on stone tablets that some guy brought down off a mountain. In D&D, the gods are provably real, they are very powerful, and they sometimes take direct action in the world of men.
So if you're a cleric of Pelor commands you to seek out and destroy the undead, this isn't a suggestion or a request. It is a commandment.

The 4e DMG has the same thing for the evil gods.
Remember, in D&D, when your god gives you a command, it is probably not something written down a long time ago on stone tablets that some guy brought down off a mountain. In D&D, the gods are provably real, they are very powerful, and they sometimes take direct action in the world of men.
So if you're a cleric of Pelor commands you to seek out and destroy the undead, this isn't a suggestion or a request. It is a commandment.