
But I'm a SWORN brother
of the Night's Watch now.
Game of Thrones Season 5, Episode 1

I was Jeffrey's SWORN shield.
Game of Thrones Season 3, Episode 4

I've SWORN to serve the Lord of Riverrun
and obey his commands.
Game of Thrones Season 6, Episode 8

I am SWORN to serve you.
Game of Thrones Season 3, Episode 3

and SWORN to take revenge against you.
Game of Thrones Season 4, Episode 5