The historic Christian Church had traditionally associated the Number 8 with the entrance into the covenant with God. This understanding comes from God Himself who commanded Circumcision- the Sign of the Covenant-to be performed on the Eighth Day. God used the same language when He gave the Rainbow (Genesis 9:13):
I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth.
The word “rainbow” used in this verse sums to the Number 800 which is also the value of Greek words “Lord” and “Faith.” It is also the value of the final letter of the Greek alphabet, Omega. This is the essence of Faith-trusting in the Lord who will see us through to the very End, signified by Omega. This lifts us above our present state to behold our Shepherd who is Lord above all.
These eight days always include one Shabbat, the Seventh day, which corresponds to the experience of perfect harmony with nature. The eighth day of circumcision represents the Power of the soul to Contact that Light which Totally transcends nature. Through circumcision the Jew is given the power, throughout his life, to overcome all of the obstacles nature may seem to place in the face of his service of God.
The Transcendence associated with the Number Eight-recognized by both Jews and Christians-Ultimately manifests in the Everlasting New Beginning found in the Resurrection of the Lord Jesus Christ.
Circumcision on the Eighth Day is a Supernatural typological prophecy of the renewal that comes through entrance into God’s covenant, which manifests as Baptism in the New Testament, and ultimately a symbol of the everlasting life given through the resurrection of Christ.
We have multiple Independent Converging lines of association between Baptism, Salvation through the Flood, Resurrection, and the Number Eight that points clearly to the deliberate Design and Teaching of God’s Wisdom. It is for that reason that the Church ha traditionally designed Baptismal fonts as Octagons.
“The other disciples therefore said unto him, We have seen the Lord. But he said unto them, Except I shall see in his hands the “print” of the nails, and put my finger into the “print” of the nails, and thrust my hand into his side, I will not believe.
And after Eight days again his disciples were within, and Thomas with them: then came Jesus, the doors being shut, and stood in the midst, and said, Peace be unto you.
Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing.”
“But whosoever drinketh of the water that I shall give him shall never thirst; but the water that I shall give him shall be in him a well of water springing up into everlasting life.”
“But one of the soldiers with a spear pierced his side,a nd forthwith came out blood and Water.”
“And Thomas answered and said unto him, My Lord and My God. Jesus saith unto him, Thomas, because thou has seen me, thou hast believed: blessed are they that have not seen , and yet have believed.”