Who said "Oaths are chains that bind the willing."?

This quote is attributed to Jon Snow.

Oaths are chains that bind the willing. - Jon Snow

"Oaths are chains that bind the willing."

Jon Snow Truth

Character in A Storm of Swords

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"A man must know how to die"

"The night gathers, and now my watch begins"

"I shall wear no crowns and win no glory"

"I am of the night."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."