Iphone will it ring if i turn it off?

I'm going to church i usually don't bring my phone but i kinda need to incase of emergencys so i need to know if i turn it off, will it somehow turn back on? Has it happened to you?

Once it's off it's off it won't turn on unless you turn it on

No it won't turn on, but you don't even have to go that far, just flip the tiny switch in the upper left hand corner and no sounds or buzz will be made for ring or text.