What associations do you have with this song? We once sang it in the school choir. A friend of mine recently covered it
Let me know what you think about the song in general and the cover 
The first time I heard Hallelujah was Rufus Wainwright’s cover. I felt like I had been thrown to the ground and shown something amazing. I played it on repeat for a long time.
I don’t know if you’re looking for constructive criticism but you’re going to get it since you posted a link. I think your voice sounds wonderful but that you should work on not ‘scrunching’ or ‘sitting on’ your vowels, it makes some of the notes come off flat. “Round tones, round tones…”
Another amazing cover I’ve heard of it was on the Voice http://www.youtube.com/watch?v=3UlX1hod4Lk
Hope you have a great day!