The term 'Biblical Hymn' can be broken down into two words, 'CANTICLE' and 'PSALM'. A CANTICLE is a song or hymn from the Bible, usually taken from the Old Testament. It is often used in Christian liturgy and worship. A PSALM is a sacred song or poem found in the Bible, usually taken from the Book of Psalms. It is also used in Christian liturgy and worship. Both Canticles and Psalms are considered to be Biblical Hymns.