Scripture is written with the welfare of the spirit of man in mind before all else, a state in which he was but which he lost, and to which he returns.
The laws and ordinances are the 'road', as it were, that lead him back to that state, an age of 'powers';
And have tasted the good word of God, and the powers of the world to come,
1 Thessalonians 4:17
Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
Also the cow and the bear will graze,
Their young will lie down together,
And the lion will eat straw like the ox.
8 The nursing child will play by the hole of the cobra,
And the weaned child will put his hand on the viper’s den.
It's clear that these scriptures point to a time such as is not the norm on earth. This is the point of changing of man to be able to exist in these unusual times, and the processes involved in that change are what Leviticus and other parts of scripture signify.
Let's try to parse these two scriptures.
“The persons being purified must then wash their clothes, shave off all their hair, and bathe themselves in water. Then they will be ceremonially clean and may return to the camp. However, they must remain outside their tents for seven days.
Lev 14:8 alludes to a sinner proper, the profane, that comes to the teacher depicted as a priests. The priest denotes sons of God who are taught by Him, by Messiah. They are often denotes as the Temple or the Sanctuary of God, Act 17:24, John 2:21, etc.
-clothes allude to deeds in life,
-white denotes righteousness, Revelation 19:8
-filthy or torn denotes wickedness, Isaiah 64:6
- To wash denotes to walk in ways of the Most High. Isaiah 4:4 refers to the time when the laws will be obeyed by help of spirits mentioned. That is the washing of Israel.
-To shave the hair is similar in washing, but is specific in regard with wisdom employed in doing life. So when you shaved the hair, it denoted you abandoned the old wisdom and adopted that of God's laws.
-To bathe in water alludes to changing into a new person by the agency of the laws of the Most High.
This list of dos marks one that hopes in the life to come as promised, that is, dependent upon the laws of the God of Israel.
And while these are in that state and still hopeful but aren't fully in the age to come, that waiting period is the 7 days of waiting outside of the camp before entering their tents. The Camp denoted the Kingdom.
But on the seventh day, note that they again shave and wash the body. Their acts are righteous and only awaiting a change into a new existence or reality of life.
The 7th day is the Sabbath, also in Genesis' 7th, it denotes the dawn of the 'new Era' in which another wisdom is required and 'natures of the beings' also further changed to be accomodated in the new environment of powers.
This new body is the new tent from above which all such hopefuls or followers have in heaven into which they 'come' by:
2 Corinthians 5:1
For we know that if the earthly tent which is our house is torn down, we have a building from God, a house not made with hands, eternal in the heavens.
These laws have in them more than what meets the eye, so it's erroneous to translate that 'uncleanliness' as being mere 'ceremonial' because Israelites paid with their lives when in breach of any. Nothing is ceremonial about death!
1 And Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon, and offered strange fire before the Lord, which he commanded them not.
2 And there went out fire from the Lord, and devoured them, and they died before the Lord.