I thought this up after listening to the Dropkick Murphy's version of the Boston College fight song. It's quite simple, and I hope it is appropriate:

To the tune of the Boston College fight song:

oh Odin oh Odin our strength we give to You
oh Odin oh Odin to You our hearts are true
We have no fear of battle cause our faith is strong
Our lives our soul our spirit all to You belong
Oh Odin oh Odin we live and die for You