Oathbreakers – Leslie Fish

Bonds of blood and bonds of steel
Bonds of god-fire and of need,
Bonds that only we to feel
Bonds of word and bonds of deed,
Bonds we took – and knew the cost
Bonds we swore without mistake
Bonds that give more than we lost,
Bonds that grant more than they take

“Oathbreakers,” from a novel by Mercedes Lackey, sung by Leslie Fish and…other people.  I’m not sure the YouTube description is actually accurate, so I’ll leave it at that.