See also Hymn book, hymnal
Psalms are religious songs. A remarkable example of the motif in the fairy tales and stories of Hans Christian Andersen is At the Uttermost Parts of the Sea. The title is a quote from psalm 139 of the bible's book of Psalms, a psalm by David.
It was a long way to the river, and Little Claus was no light load. The road went by the church, and as they passed they could hear the organ playing and the people singing very beautifully. Big Claus set down his sack just outside the church door. He thought the best thing for him to do was to go in to hear a hymn before he went any further. Little Claus was securely tied in the sack, and all the people were inside the church. So Big Claus went in too.