Who said "A leader commands. I merely am."?

This quote is attributed to The Night King.

A leader commands. I merely am. - The Night King

"A leader commands. I merely am."

The Night King Leadership

"The living are not my concern."

"Death is the enemy. And we are joining the fight against it."

"Winter came for House Umber."

"I am the night."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"