Who said "My fire consumes all in its path."?

This quote is attributed to Smaug.

My fire consumes all in its path. - Smaug

"My fire consumes all in its path."

Smaug

"I am fire. I am death."

"You have no idea what you're dealing with."

"I am armored above and below with iron scales and hard gems."

"My armor is like tenfold shields, my teeth are swords, my claws spears."