Riddle

Here's a riddle I liked when I was reading Redwall. You must read it VERY carefully to figure it out:

There is a warrior,
Where is a sword?
Peace did he bring,
The fighting Lord.
Shed for him is my fifth tear.
Find it in the title here,
Written in but a single word,
An eye is an eye, until it is heard.

Lines:
One of one.
Eight of two.
One of three.
Three of four.
One of five.
Six of six.
Two of seven.
Four of eight.

Good luck! You'll need it ;D