Albert Barnes Commentary Ezekiel 43:18

"And he said unto me, Son of man, thus saith the Lord Jehovah: These are the ordinances of the altar in the day when they shall make it, to offer burnt-offerings thereon, and to sprinkle blood thereon." — Ezekiel 43:18 (ASV)

The rites here described are not those of the regular service, but those to be observed on the day of dedication. (Compare Leviticus 8:10 and following; 1 Kings 8:63 and following; 2 Chronicles 7:4 and following.) In the tabernacle the priest killed the victims, but Moses sprinkled the blood. In the vision the seer is addressed as though he were to perform the part of Moses.