Hello all!

Wondering if you could help me out-I am looking for antiphons for the Mass for the dedication of our new altar. However, they are difficult to find. For the Lighting of the Altar, we need to sing, 'In you, O Lord, is the fountain of life; in your light we shall see light." I believe it is Psalm 36:9. In any case, I can't find a simple version of it. It says we can also sing another appropriate song, but....thoughts?? I'd rather sing the suggested antiphon, but I also want it to be 'festive' as it says. A simple motet would also be welcome. Latin is fine, as well.