Hymn zànm ch ish: (Hymn) is a poem praising God when Christianity holds a worship ceremony. The contents of the lyrics are mainly praise, thanks and prayers to God. At present, most hymns have four chorus tunes: tenor, tenor, tenor and bass, while the early hymns have no harmony and no accompaniment. The earliest existing complete lyrics are Greek hymns, written about 200 years ago and entitled "Let it be, Light of Joy".
In the Old Testament, there are 150 poems called "Psalms", which are divided into five parts, including hymns to praise God or pray for God's blessing. Most of them were sung by Jews in the cathedral.