Charles Ellicott Commentary Ezekiel 43:23

"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." — Ezekiel 43:23 (ASV)

Hast made an end of cleansing it. —Not an end of the entire service of consecration, but of the sin offering for the day, for Ezekiel 43:25 says distinctly that both a sin offering and a burnt offering were to be offered on each of the seven days. The reason the burnt offering is not mentioned on the first day is that, since the sin offering was changed on the second day, the prophet first describes the sin offering for both days and then addresses the burnt offering, which remained the same throughout. Here the burnt offering is a bullock and a ram; in Exodus 29:0, two rams.