God loves a mystery, often revealing information on a need-to-know basis. The meaning of the last fall Holy Day, the Eighth Day, part of the mysteries of the Kingdom (Matthew 13:11), offering hope to those who have not yet been called, has proved a mystery difficult to crack for many years in the Church of God. The Eighth Day focuses upon the Rivers of Living Waters, signifying God's Holy Spirit flowing from the resurrected saints, unlocking previously secret things (Colossians 1:24) and revealing that "Christ in us is the hope of glory" (Colossians 1:27) to a wider group of people in the Millennium and beyond,. In calculating their offerings on this Holy Day, God's people should place a high value on the priceless nature of this revealed knowledge, refusing to treat it with a blasé attitude.