בֵּ֣ית יִ֭שְׂרָאֵל בָּרֲכ֣וּ אֶת־יְהוָ֑ה בֵּ֥ית אַ֝הֲרֹ֗ן בָּרֲכ֥וּ אֶת־יְהוָֽה׃
Maison d’Israël, bénissez le Seigneur! Maison d’Aaron, bénissez le Seigneur!
Rashi
'וכפר בעדו וגו AND HE SHALL MAKE AN EXPIATION FOR HIMSELF etc. — This implies a second confession of sins which he was to make for himself and on behalf of his brother-priests, who may all be termed “his house”, as it said (Psalms 135:19) “Bless the Lord, o house of Aaron, etc." (cf. Shevuot 14a). Hence we learn that the priests become atoned for by means of it (the bullock). The expiation effected by it extended, however, only to those sins committed by causing uncleanness to the Sanctuary or holy things (i.e. by the priests having entered the Sanctuary or eaten of the holy things in such a state), as it is said (v. 16) “And he shall make an expiation for the holy place because of the uncleanness [of the children of Israel] etc.”.
Radak
Ye that fear the Lord, praise Him; All ye of the seed of Jacob, glorify Him: – So shall they say in the time of their deliverance. The interpretation of ye that fear the Lord is “ye of Israel,” and this division is like “Ye that fear the Lord, bless ye the Lord” (Ps. 135:20); “house of Levi” (ibid.); “house of Aaron” (ibid. 19); “house of Israel” (ibid.). The reason is that each separate one is mentioned according to its gradation and significance, and according to its relative nearness to God. Notice also that in this verse he mentions love and fear, for “glory” is equivalent to love, and those that fear the Lord from fear will attain to love.