Who said "You want this power, don't you?"?

This quote is attributed to Darth Vader.

You want this power, don't you? - Darth Vader

"You want this power, don't you?"

Darth Vader

"I find your lack of faith disturbing."

"The Force will be with you, always."

"I am altering the deal. Pray I don't alter it any further."

"There is no escape. Don't make me destroy you."