Chabad.org — English translation + Rashi
Torah Temimah continues the analysis of the two bulls and the principle that the more sacred precedes; the dual offering (chatas + olah) for the Levites establishes both atonement and elevation.
English: “He shall make the one a chatas and the one an olah” — the blood of the chatas comes first because it effects atonement; the limbs of the olah come first because they are wholly consumed.
Comparative priority of offerings — the text balances the two animals so that each aspect of greater sanctity is honored in its proper place.
The Levites’ purification is not a single-dimensional act; it requires both the atoning power of the chatas and the complete dedication of the olah.