I've broken a sacred VOW.
Game of Thrones Season 3, Episode 5
I swore a VOW to the Night's Watch.
Game of Thrones Season 5, Episode 2
but I took a holy VOW.
Game of Thrones Season 2, Episode 10
How does the Night's Watch VOW go again?
Game of Thrones Season 5, Episode 3
"Hear my words
and bear witness to my VOW..."
Game of Thrones Season 1, Episode 10