The Eighth Day begins at sundown the night before October 24.
The Eighth Day teaches us that Jesus Christ will complete His harvest of humans by raising from the dead and extending salvation to all human beings who have died in the past and have never been given a full opportunity for salvation (Ezekiel 37:1-14; Romans 11:25-27; Luke 11:31-32; Revelation 20:11-13). The annual cycle of the celebration of the festivals and Holy Days reminds Christ's disciples that He is working out His plan of extending salvation from sin and death and offering the gift of eternal life in the family of God to all humanity—past, present and future.
To Read more about the Eighth Day click the links below.
http://www.ucg.org/tags/eighth-day
