Music and song can be a primary method of teaching scripture and church history, as well as a way to express one's thoughts and feelings to God.

"For he that singeth praise, not only praiseth, but only praiseth with gladness: he that singeth praise, not only singeth, but also loveth him of whom he singeth. In praise, there is the speaking forth of one confessing; in singing, the affection of one loving." (St. Augustine, Commentary on Psalm 73, 1)