On today's episode, a listener writes in and asks Dave, "Why do Christians sing praise and worship songs?" • When You Sing, You Obey. • When You Sing, You Dig Deep Roots in the Word. • When You Sing, You Build up Others. • When You Sing, You Make War. • When You Sing, You Are Spiritually Strengthened for Trial. • When You Sing, You Walk a God-Designed Pathway to Joy. • When You Sing, You Glorify God.