Answer:
Some of the decline caused in churches is from the focus moving away from whatever religion and turning to pride. Some churches become prideful and make themselves higher rather than the one they believe in. This makes the church decline because people on the outside see it as whatever religion and feel belittled.
Step-by-step explanation:
This is supposed to be your opinion so you technically cannot get a wrong answer this was just some overview and examples.
Hope it helped!