Unfortunately, this is not correct. I wish it were, but it's not. Because we in the United States do not have testing at scale, we simply don't know who has it, where they are, or how they got it. So the assumption that only people from outside the community have it is wishful thinking.The thing is that it could be safe if no one from their church has traveled out of the area or had anyone come visit from out of the area for the past few weeks. But explaining the difference between "could be" and "is not" does not work so well with a lot of people.
I live in the US, in Virginia, and all the known cases are in parts of the state, or in bordering states, nowhere near me, so most stuff here is still "business as usual" for a lot of people. I work in food delivery, so I will be working til the state forces us to close, which seems unlikely right now, as it seems most states want takeout and delivery food to stay available, since this is a regular source of meals for so many people.
Scientists say for every case detected, 5 to 10 cases are undetected. They also say that the number of cases double every 2 to 3 days.
Virginia, at the time I type this, has 67 declared cases. But it likely has over 500 cases today, this very moment. And by next Monday it will have a few thousand cases, perhaps more, most of them undiagnosed.
For the record, I live in LA, and the county has 140 confirmed cases. Now do the above math and imagine how bad next week is going to look, and the week after that, and the week after that.
Events are moving fast. Much faster than most of us can comprehend. You should assume "business as usual" is over and and be prepared to shelter in place in a matter of days. You should also assume that your likelihood of coming into contact with someone who is infected is growing quickly. Take measures now to protect yourself, your loved ones, and your community. Each day we fail to act results in more infections...and more fatalities.
I know I sound like a crazy person. I'm not. The person you are today, I was a week ago. And in a week, you're going to be me.