Let us examine the amazing changes that result from "blood". First an altar was set up and burnt-offerings were offered, and then the blood of the covenant was sprinkled upon the people: "And Moses took the blood, and sprinkled it on the people, and said, Behold the blood of the covenant, which the Lord hath made with you concerning all these words" (Ex.24:8).
With the blood the nation was "sanctified" and "then went up Moses, and Aaron, Nadab, and Abihu, and seventy elders of Israel...and upon the nobles of the children of Israel He laid not His hand; also they saw God, and did eat and drink" (Ex.24:9,11). Then the Lord gives the command: "Let Me make them a sanctuary; that I may dwell among them" (Ex.25:8).
Just the day before it would have been death if they would even touch the mount, but now they saw God, and they were at peace in His presence. In the day when the people were sprinkled with the blood of the covenant the nation of Israel was established as a holy people in covenant with God.
Today it is by the "blood of the covenant" (Heb.10:29) that the believer is "sanctified": "By which will we are sanctified through the offering of the body of Christ once for all" (Heb.10:10).
"To those who...are chosen according to the foreknowledge of God the Father, by the sanctifying work of the Spirit, to obey Jesus Christ and be sprinkled with His blood" (1 Pet.1-2; NASB).
Israel will never return to the bondage of Egypt. When the Lord brought them out of Egypt He lead them by the way of the Red Sea so that she would not return to Egypt:
"When Pharaoh let the people go, God did not lead them on the road through the Philistine country, though that was shorter. For God said, 'If they face war, they might change their minds and return to Egypt.' So God led the people around by the desert road toward the Red Sea" (Ex.19:17-18).
Habershon writes, "If the Red Sea had not rolled between them and Egypt, they could have easily returned; and this is evidently the key to the truth taught by the crossing of the Red Sea" (Habershon, Study of the Types [Kregel Publications, 1993], p.23).
The Lord told the nation that she shall "return no more that way": "The king, moreover, must not acquire great numbers of horses for himself or make the people return to Egypt to get more of them, for the Lord has told you, 'You are not to go back that way again' " (Deut.17:16).
Sir Robert Anderson writes: "But what if the redeemed sinner fall by the way? Will not sin thrust him back again under Egyptian bondage, and create the need for a new redemption? Most emphatically, No. Sin might bring Israel to Babylon; but a return to Egypt was for ever barred. (Deuteronomy 17:16)" (Anderson, Redemption Truths, Chapter 4).
The Lord will never forsake nor leave the nation of Israel: "Be strong and courageous. Do not be afraid or terrified because of them, for the LORD your God goes with you; he will never leave you nor forsake you" (Deut.31:6; NIV).
The author of Hebrews told the Christian that the Lord will not leave nor forsake him: "Keep your lives free from the love of money and be content with what you have, because God has said, 'Never will I leave you; never will I forsake you' " (Heb.13:4).
The sacrifical system set up under the Covenant by which the nation of Israel was sanctified provided a way whereby that nation could be kept on their wilderness way as a "holy nation." This system was set up so that the nation could be maintained in the enjoyment of the blessings which had come by redemption.
Despite the fact that the nation of Israel had been redeemed and made holy, it was still necessary, once a year, for that nation to be cleansed from all her sins. On the Day of Atonement the High Priest cleansed that nation from all of her sins: "For on that day shall the priest make an atonement for you, to cleanse you, that ye may be clean from all your sins before the LORD" (Lev.16:30).
The Lord Jesus is now the Christian's High Priest Who cleans him from sins committed after being redeemed: "For this reason He had to be made like his brothers in every way, in order that He might become a merciful and faithful High Priest in service to God, and that he might make atonement for the sins of the people...If we confess our sins, He is faithful and just and will forgive us our sins and purify us from all unrighteousness" (Heb.2:17; 1 Jn.1:9; NIV).
Here the nation of Israel is being used as a "type" of the individual Christian's cleansing during his walk. This is critical to the Christian's "service" for the Lord, and that is because the Christian must remain in "fellowship" with the Lord Jesus in order to bear fruit, as witnessed by the Lord's own words: "I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing" (Jn.15:5).