Before the idolatry at Mount Sinai God never commanded Priests, Levites, animal slaughter or burnt offerings. The levites led the apostasy because God had abandoned them to worship the starry host: whatever the Civil-Military-Clergy did was defacto Babylonian because God sentenced them to captivity and death or scattering. God did not command any temple which allowed the clergy to control Him but He tabnernacled outside with His godly Israelites who attended synagogue or School of the Word and did not go to Jerusalem for congregational worship..
Ezek 44:10 And the Levites that are gone away far from me,
when Israel went astray, which went astray away from me
after their idols; they shall even bear their iniquity.
Ezek 44:11 Yet they shall be ministers in my sanctuary, having charge at the gates of the house, and ministering to the house: they shall slay the burnt offering and the sacrifice for the people, and they shall stand before them to minister unto them.
Ezek 44:12 Because they ministered unto them before their idols, and caused the house of Israel to fall into iniquity; therefore have I lifted up mine hand against them, saith the Lord God, and they shall bear their iniquity.
Ezek 44:13 And they shall NOT come near unto me, to do the office of a priest unto me, nor to come near to any of my holy things, in the most holy place: but they shall bear their shame, and their abominations which they have committed.
Ezek 44:14 But I will make them keepers of the charge of the house, for all the service thereof, and for all that shall be done therein.
H5656 ab-o-daw', ab-o-daw' From H5647 ; work of any kind:&emdash;act, bondage, + bondservant, effect, labour, ministering (-try), office, service (-ile, -itude), tillage, use, work, X wrough
H5647 Abad aw-bad' A primitive root; to work (in any sense); by implication to serve, till, (causatively) enslave, etc.:&emdash; X be, keep in bondage, be bondmen, bond-service, compel, do, dress, ear, execute, + husbandman, keep, labour (-ing man), bring to pass, (cause to, make to) serve (-ing, self), (be, become) servant (-s), do (use) service, till (-er), transgress [from margin], (set a) work, be wrought, worshipper.
Josephus knew that the Levites had destroyed Israel the first time and WERE READY to do it again:
6. Now as many of the Levites, (26) which is a tribe of ours, as were singers of hymns, persuaded the king to assemble a sanhedrim, and to give them leave to wear linen garments, as well as the priests for they said that this would be a work worthy the times of his government, that he might have a memorial of such a novelty, as being his doing.
Nor did they fail of obtaining their desire; for the king, with the suffrages of those that came into the sanhedrim, granted the singers of hymns this privilege, that they might lay aside their former garments, and wear such a linen one as they desired; and as a part of this tribe ministered in the temple, he also permitted them to learn those hymns as they had besought him for.
Now all this was contrary to the laws of our country, which, whenever they have been transgressed, we have never been able to avoid the punishment of such transgressions.
In Genesis 49 God cursed the Levites and God later abandoned them to worship the starry host. Acts 7 and many other places say that God never commanded animal sacrifices or the holocaust of animal or Goats. God does not live in temples made by human hands nor by the works of human hands. If God had commanded a literal house when He promised David a FAMILY He allowed three perfectly good ones to be destroyed along with most of the priests who refused to obey.
I believe that the New Testament defines that "perfect time" to execute that period used to separate those preserved FROM fire and those preserved FOR fire.