
He swore an OATH, Cat.
Game of Thrones Season 1, Episode 1

I know I broke my OATH.
Game of Thrones Season 1, Episode 1

I am. You fulfilled your OATH to
Catelyn Stark against all odds.
Game of Thrones Season 6, Episode 8

because he'd sworn an OATH
to your mother.
Game of Thrones Season 8, Episode 2

I broke a sacred OATH
and stabbed my King in the back.
Game of Thrones Season 6, Episode 2