Who said "I come back to you now at the turn of the tide."?

This quote is attributed to Gandalf.

I come back to you now at the turn of the tide. - Gandalf

"I come back to you now at the turn of the tide."

Gandalf

"All we have to decide is what to do with the time that is given us."

"Even the smallest person can change the course of the future."

"There is some good in this world, and it's worth fighting for."

"A wizard is never late, nor is he early. He arrives precisely when he means to."