I promise you - A fancy way of saying 'I will definitely do something about

A fancy way of saying 'I will definitely do something about this, and it will be very dramatic.'

'I promise you, I will do something about your burials!' said the kid who was still eating pizza.

'I promise you, I will do something about your burials!' said the kid who had no idea what burials were.

'I promise you, I will do something about your burials!' said the kid who just wanted to go home.