I've SWORN to protect you, my lady.
Game of Thrones Season 6, Episode 5
All of them have SWORN upon their rings
to keep this meeting a secret.
Vikings Season 1, Episode 2
Your Grace, the Kingsguard
is a SWORN brotherhood.
Game of Thrones Season 1, Episode 8
Sworn to answer when called upon.
Game of Thrones Season 6, Episode 7
She's SWORN to protect
both of Catelyn Stark's girls.
Game of Thrones Season 7, Episode 6