My god says NO! (spell denied)

[Belkarseviltwin]

I also think there is a variant ability in Complete Mage that enables counterspelling instead of turn and gives a bonus in the process

There is. Divine Counterspell lets you produce a counterspell effect similar to Dispel Magic- except it's based on Cleric level not caster level- a certain number of times per day. There's no bonus, though, and you get fewer Counterspell attempts than a vanilla cleric gets Turn attempts.