What does it mean to be Holy?

Dear Theologika, I’ve been hearing a lot recently about being called to be holy and about holiness. But I don’t know what it means to be holy. I know the saints are holy. I’ve heard that God tells people in the Bible to be holy because He is holy....

Church Leadership

Dear Theologika, Can you explain why there are so many types of religious leaders in the Catholic Church? Pope? Bishop? Priest? Deacon? Who are they and what do they do? The Christian church down the road from me just has a minister. They choose their own leaders and...