Albert Barnes Commentary Ezekiel 43:23-26

"When thou hast made an end of cleansing it, thou shalt offer a young bullock without blemish, and a ram out of the flock without blemish. And thou shalt bring them near before Jehovah, and the priests shall cast salt upon them, and they shall offer them up for a burnt-offering unto Jehovah. Seven days shalt thou prepare every day a goat for a sin-offering: they shall also prepare a young bullock, and a ram out of the flock, without blemish. Seven days shall they make atonement for the altar and purify it; so shall they consecrate it." — Ezekiel 43:23-26 (ASV)

On each of the seven days, there was a burnt offering of a bullock and a ram, preceded by a sin-offering of a bullock on the first day, and of a kid of the goats on the other days (Ezekiel 43:24).

Salt is here added to the burnt-offering to express still more the idea of purification. In the Second Temple, no sacrifice was complete without the use of salt, and the rabbis assert that there was a great heap of salt close to the altar, always ready for use, and that the inclined plane to the altar was kept covered with salt. Compare Mark 9:49.

Ezekiel 43:26: Consecrate themselves - literally, as in the margin (Leviticus 8:27). The priests are already consecrated, but the memory of their consecration was thus kept up at the dedication of the altar.