In my opinion, The Art of Celebration is the best album by Irish worship band Rend Collective. While it doesn't quite have the genre diversity of its predecessor Homemade Worship by Handmade People, it hones the Celtic musical elements and has arguably the most poetic lyrics than the rest of their albums.
The most popular song on the album is "My Lighthouse" (Amazon), but I'm particularly fond of the title song "Boldly I Approach (The Art of Celebration)" (Amazon). The lyrics are very moving, but I must admit I've struggled to do justice to this song (mostly as an offertory) with a full band. A female lead and myself (piano and BGV) have utilized the song well with a more scaled-back approach, however. Lyrics below: