The number "eight" has to do with new beginnings resulting from God's mercy and His grace.
* The Creation Week, like any other week in history, took seven days (Gen. 1:1 - 2:3). We see the "eighth" day as the start of human history.
* The Hebrew child was initiated into the religious community by circumcised on the eighth day, (Gen. 17:10-12).
* There were "eight" persons saved from the Flood for the very purpose of the human race having a new beginning (Gen. 7:7; 1 Pet. 3:2; 2 Pet. 2:5; etc.).
* David was the "eighth" son of Jesse (1 Sam. 16:10-11).
* A leper was cleansed on the "eighth" day (Lev. 14:10-23).
* The Feast of Wave Loaves, commonly known as the Feast of Pentecost, occurred on the first day of the "eighth" week after the Feast of First Fruits (Lev. 23:10-21). This feast can be seen as a feast of "new beginnings" because the Church was founded on the day of the Feast of Pentecost (Acts 2:1-47).
* The Feast of Tabernacles, the feast representing the Millennial Kingdom of Christ, lasted seven days; the following day was a Sabbath, a Day of Holy Convocation (Lev. 23:36). It is that "following day," the "eighth" day, if you will, that represents the beginning of our eternity with God (Rev. 21:1 - 22:21)!
And, while the number "8" clearly represents God's mercy and grace at giving man a "fresh start," it is also ironic that the figure itself, laid on its side, is the symbol for infinity (eternity)! My "seven days" lasted twenty-eight years, but thank God, my "eighth day" began January 31, 1971!
If all you have is "seven days," makes you weak;
it is the "eighth day" that makes us eternal!