The blood was not brought in — Because Aaron was not yet admitted into the holy place, whither that blood should have been brought, 'till he had prepared the way by the sacrifices which were to be offered in the court.
Related Commentaries of Leviticus 10:18
Leviticus 10:18
18 Behold, the blood of it was not brought in within the holy place: ye should indeed have eaten it in the holy place, as I commanded.