Who said "I am here to see this through to the end."?

This quote is attributed to Legolas.

I am here to see this through to the end. - Legolas

"I am here to see this through to the end."

Legolas

"A Elven blade of the First Age, still sharp and true."

"The world is vast, and there is much beauty to behold if one takes time to see it."

"In friendship, we find our greatest treasure."

"Do not despair, for hope endures even in the darkest places."