Ezekiel 43:22,23

“And on the second day you will offer a he-goat without blemish for a sin offering, and they will cleanse the altar as they cleansed it with the bullock. When you have made an end of cleansing it, you will offer a young bullock without blemish, and a ram out of the flock without blemish, and you will bring them near before Yahweh, and the priests shall cast salt on them, and they shall offer them up as a whole burnt offering to Yahweh.”

Note again the emphasis on cleansing (literally ‘de-sinning'). Until that was accomplished no whole burnt offering could be offered up, an offering wholly consumed in fire. But then a young bull and a ram, both without blemish, could be offered as a whole (burnt) offering, an act of total self-giving, of worship, love and gratitude. But it would require seven days, the period of divine perfection, to thoroughly cleanse the altar. This sounds like something very intense and necessary, not at all like a memorial offering.

‘And the priests shall cast salt on them.' Compare Leviticus 2:13; Numbers 18:19; Mark 9:49. The idea seems to be of a preservative function and a countering of corruption. It was closely linked with the covenant and was continually required (Leviticus 2:13) as a sign of the preserving of the covenant relationship without corruption.