if someone rubs it in, they keep talking about something that makes you feel embarrassed or upset. I know I made a mistake, but you don't have to rub it in.
Whenever he won money from a bet with others, he would always rub their noses in it by saying, "Thanks for the donation, suckers." (this being an example of how to rub someone's nose in it)
church hurt is where you experience a degree of distance, pain, or judgement from your church community. Essentially, you are just unable to “find your place”. This is prevalent in the Christian community, but can be extended to other religions.
Now that I am an adult I am beginning to heal from the church hurt that was inflicted on me as a child.