God gave Moses the plans for the Tabernacle at Mt. Sinai. It is a type of how God's plans would be executed. Since God had rested from his work and blessed the seventh day (Ge 2:3) it was a logical place to start. Moses told Israel, "'This is what the Lord meant: tomorrow is a sabbath observance, a holy sabbath to the Lord'" (Ex 16:23). "'It is a sabbath of complete rest to you, and you shall humble your souls'" (Lev 23:32). Much later God reiterated through Jeremiah, "'You shall not bring a load out of your houses on the sabbath day nor do any work'" (Jer 17:22). Furthermore, "'If you listen attentively to Me,' declares the Lord . . . 'then there will come in through the gates of this city kings and princes sitting on the throne of David . . . and this city will be inhabited forever'" (:24-25). Another time God instructed, "'You shall keep My commandments, and do them: I am the Lord. And you shall not profane My holy name, but I will be sanctified among the sons of Israel: I am the Lord who sanctifies you, who brought you out from the land of Egypt, to be your God: I am the Lord'" (Lev 22:31-33). There were extensive details. For example God said, "'Sanctify to Me every firstborn, the first offering of every womb among the sons of Israel, both of man and beast; it belongs to Me'" (Ex 13:2).
It was a prophetic plan and God's designs come to pass. Through Ezekiel the goals which were expressed in Leviticus 22:31-33 were repeated. These were not just token ideas. In Ezekiel 36:25-29 God's promise of "I will" occurs nine times. He first deals with sin and idolatry. "'I will sprinkle clean water on you, and you will be clean; I will cleanse you from all your filthiness and from all your idols'" (Eze 36:25). God takes control saying, "'I will give you a new heart and put a new spirit within you'" (:26). The Spirit will "'cause you to walk in My statutes, and you will be careful to observe My ordinances'" (:27). He would "'gather them'" (37:21) and "'make them one nation in the land'" (:22). "'The nations will know that I am the Lord who sanctifies Israel, when My sanctuary is in their midst forever'" (:28). "'You will be My people, and I will be your God'" (36:28). Additionally, "'I will call for the grain and multiply it'" (:29). Also, God repeats, "'I will save you from all your uncleanness'" (:29) where in verse 25 it says "will cleanse" which becomes equivalent to "will save." It also says, "'I will sprinkle clean water on you'" which illustrates purification. This is a fulfillment of Moses instructing "'the priest shall dip his finger in the blood, and sprinkle some of the blood seven times before the Lord'" (Lev 4:6).