How is Coptic still used by the Coptic Orthodox Church?

Although the Coptic language was spoken in daily life until the 16th or 17th century, it is now used exclusively as a liturgical language within the Coptic Orthodox Church.12

The church utilizes the Bohairic dialect of Alexandria for its religious services. Specifically, the church's service books, which contain liturgies attributed to figures such as St. Mark, St. Cyril of Alexandria, and St. Gregory of Nazianzus, are written in Coptic with parallel columns of Arabic text. While Arabic is used for Bible lessons and many hymns, Coptic remains present through these liturgical texts and certain short refrains that are understood by the congregation. Additionally, some scholars suggest that Coptic chant preserves ancient Egyptian musical traits, further linking the church's modern traditions to its historical roots.345