Lurkerabove makes numerous excellent points.
The only supernatural ability that rangers get access to from a deity is their spellcasting. All the rest of their abilities are extraordinary, including their animal companion (the same goes for druids). With this in mind, it makes sense that someone can be trained to be a ranger without necessarily belonging to the requisite faith.
It needs to be understood that rangers began as specialty priests of Mieliekki, Gwaeron Windstrom and Shaundakul (much as druids were specialty priests of Silvanus). That is where the concept of rangers requiring a nature deity to function comes from.
With the way 3.5 works, however, the necessity isn't present. Rangers are presented less as a specific kind of clergy and more as a hunter/pathfinder archetype.
The only supernatural ability that rangers get access to from a deity is their spellcasting. All the rest of their abilities are extraordinary, including their animal companion (the same goes for druids). With this in mind, it makes sense that someone can be trained to be a ranger without necessarily belonging to the requisite faith.
It needs to be understood that rangers began as specialty priests of Mieliekki, Gwaeron Windstrom and Shaundakul (much as druids were specialty priests of Silvanus). That is where the concept of rangers requiring a nature deity to function comes from.
With the way 3.5 works, however, the necessity isn't present. Rangers are presented less as a specific kind of clergy and more as a hunter/pathfinder archetype.