Ben had slept in that Sunday morning, otherwise he would've been amongst those gathered in the tent for the church service.
When someone banged on the door of the wagon he shared with Fitz and screamed there was a fire in the church tent Ben quickly put on a pair of pants and still half dressed ran to the burning structure.
He closed his eyes for a moment to channel his element and the flames began to shrink, the fire calming until there was nothing left but smoke, burnt wood and what was left of the tent.