You swore an OATH to my father.
Game of Thrones Season 1, Episode 9
I'm bound by OATH to serve you.
Game of Thrones Season 2, Episode 10
Swear an OATH? Okay.
My right hand to God.
I'm not having an affair.
Breaking Bad Season 2, Episode 4
You swore the king an OATH, my lord.
Game of Thrones Season 1, Episode 1
But still, an OATH is an OATH.
Game of Thrones Season 7, Episode 3