It's not limited to art journaling. And most of all, the challenge themes are from the Bible.
It's a Christian Art Challenge. If you want to do a challenge with Bible verses, this site would be a really great one.
First challenge of this year is from Book of Psalms 143:8. Cause me to hear thy lovingkindness in the morning; for in thee do I trust: cause me to know the way wherein I should walk; for I lift up my soul unto thee. - King James Version As much as I do appreciate King James Version, I feel more comfortable reading and understanding the NLT version. Same meaning, just different vocabularies and wordings :) Let me hear of your unfailing love each morning, for I am trusting you. Show me where to walk, for I give myself to you. -New Living Translation