I have two riddles. The first riddle's answer is a question and a hymn.
Find an LDS hymn whose title is a turning question.
What is the question of the riddle? To confirm your answer, sing the second riddle's words to the tune of the LDS hymn.
The second riddle's answer is a scripture verse that answers that question. Having answered the first riddle, you may sing the second.
I know a monolithic verse of scripture! The ref-er-ence makes it a monolith too! Its book's name is a match to solid matter; Its math metes Space Odyssey's ra-ti-o.
What is the answer? Puzzle now upon the poetic melodic madness. If you find the answer, keep it, and consider how best to share.