Rend Collective (formerly known as Rend Collective Experiment) is a Irish worship ensemble who has released quite a few albums over the past several years. The majority of their music could be described as Celtic folk pop, their lyrics have always been poetic and edifying. One particularly creative song of theirs is called "Your Royal Blood."
It seems to be a combination of the popular hymn "Nothing But The Blood" by Robert Lowry and Andrae Crouch's classic "The Blood Will Never Lose Its Power," along with some Celtic music twists added by Rend Collective.
One of the many awesome things about Rend Collective is that they provide sheet music for most-to-all their songs on their website! Video is below: