Using plain English and consistent writing on buttons and error messages makes...

https://www.tumblr.com/wanderingtechnomancergremlin/827231866864238592/how-to-keep-tone-consistent-across-emails-and-app

Using plain English and consistent writing on buttons and error messages makes your website easier to navigate. When users understand what each button does and get clear, friendly error messages, they feel more confident and less frustrated