Take a look at this tomfoolery.
Each spell affects a 40' radius circle.
Each spell takes 24 hours to cast.
Each spell takes 1,000 gp worth of Material Components to cast
Each spell counters but does not dispel the other.
I hope this is wrong, because the actual chances for the circumstance that two people are going to competitively cast these two spells is so ridiculously slim as to make me believe this is absolutely wrong.
Solutions:
Increase the area affected to make it to where you have a real chance of being secluded from each other in order to competitively cast without the other knowing.
Make them dispel one another instead of counter. (How often do you see people blessing unholy ground twice to ward off ill effects and bad spirits?)
Am I alone in thinking that this has to be an error?
Otherwise, the only scenario this is likely is where two clerics are in two cages inside a room, and, for whatever reason, they have plenty of material component in order to cast these spells, and any other spells that would allow escape would simply fail. So they simply have nothing better to do than to do a silly competition.
Yeah, this sounds like crazytalk. Would only really be usable where one side wants to get an advantage, and the last lines are moot (since it takes 24h to create).