성가, or "sacred music," refers to religious songs or hymns that are often sung in worship settings. These compositions are typically used in various religious traditions, including Christianity, to enhance the spiritual experience during services. 성가 can be performed by choirs, congregations, or soloists and may include both vocal and instrumental elements. In the context of Christianity, 성가 plays a significant role in expressing faith and devotion. Many 성가 are based on biblical texts or themes, aiming to inspire and uplift the congregation. The use of 성가 can be traced back to early church practices and continues to be an important aspect of worship today.