Who said "I require nothing but the completion of my purpose."?

This quote is attributed to Ebony Maw.

I require nothing but the completion of my purpose. - Ebony Maw

"I require nothing but the completion of my purpose."

Ebony Maw Solitude

"I am Ebony Maw, and I have come to collect the stone you guard."

"The universe requires correction, and we shall provide it."

"Your resistance is but a whisper against the storm we bring."

"Knowledge of one's purpose is the greatest gift."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."