What significance do the biblical days of the week hold in religious practices and beliefs?

The biblical days of the week hold significance in religious practices and beliefs as they are rooted in the creation story in the Book of Genesis. The Sabbath, which falls on the seventh day (Saturday), is a day of rest and worship in Judaism and some Christian denominations. Sunday, the first day of the week, is considered holy in Christianity as it commemorates the resurrection of Jesus Christ. The other days of the week also hold symbolic importance in various religious traditions.