I agree with the 'foul language' thing. Especially english, the constant F-wording is stupid and sounds ridiculous. English is so poor language for swearing, especially compared to Finnish.
Im more into extreme metal. Im religious person aswell, but i think everyone has right to believe whatever they want and therefore pay little or no attention to possible lyrical messages in music, but look into the artistic and musical value, atmosphere and skill instead. But i think i might find some bands for you aswell. Judging from your taste, most likely you wont like these bands at first listen, but if you want to expand your metal library or knowledge of different genres, they are worth of checking out.
Slechtvalk. A christianic blackmetal (or white metal more accurately). One of most recognised "white metal" bands with christianic message instead of paganic or satanic theme which is more common in this metal genre. As this band is basically some form of blackmetal, sound is very grim and dark, but they are still the "good guys".
Summoning. Tolkien fantasy themed ambient/neoclassical/metal music. Check Oath Bound, Let Mortal Heroes Sing Thy Fame and Stronghold albums. One of my favourite bands. Very melodic and epic.
Nile. A deathmetal band. Lyrical theme is about ancient Egyptian mythology and gods, the violence and death in it especially. Harsh stuff, but if you like mythologies, a great band to listen. Check album Annihilation Of The Wicked.
