It's not uncommon to hear Christians claiming that theology is irrelevant and that they just want to be ordinary Christians who don't have anything to do with theology.
I remember some years ago an advert on television with Maureen Lipmann exclaiming to her grandson - who was preparing to graduate from university - that he was getting and 'ology' degree. It went something like 'Oooohhh! An ology! My grandson is getting an ology!!!'
But 'theology' simply means 'talk about God'. And we all have a theology and we all talk about theology.
Here are some 'theologies' that I disagree with:
* God wants to bless you. Send $100 to my ministry now and God will bless you.
* If a snake bites a true believer, they will not be harmed; it says so in the bible.
* If your terminal cancer is not cured by prayer, it's because you don't have enough faith.
I hope and expect that most people reading this post will whole-heartedly disagree with these theologies. This is my short argument for 'studying theology'. Do we want ideas like the above passed on to people in church or passed from Christian parents to their children? No, of course not.
I do agree that sometimes theology feels like arguing about how many angels can dance on the head of a pin and, when it gets to that stage, we've probably lost any kind of plot that is going to help us be Christian disciples. Nonetheless, I think there is a strong argument for studying theology, not the least because we'd want to be able to explain why we don't agree with the above theologies.