וְאֵ֣ת הֶחָז֗וֹת וְאֵת֙ שׁ֣וֹק הַיָּמִ֔ין הֵנִ֧יף אַהֲרֹ֛ן תְּנוּפָ֖ה לִפְנֵ֣י יְהוָ֑ה כַּאֲשֶׁ֖ר צִוָּ֥ה מֹשֶֽׁה׃
Quant aux poitrines et à la cuisse droite, Aaron en avait opéré le balancement devant l’Éternel, selon l’ordre de Moïse.
Ramban
THE FAT UPON THE BREAST. It appears from this verse according to its plain meaning that the breast was waved with the fat, but not the thigh. Thus the verse which states, And the breasts and the right thigh Aaron waved for a wave-offering,147Further, 9:21. means that afterwards [after he had waved the fats with the breasts], he waved them [i.e., the breasts and the thigh] by themselves. But our Rabbis have said148Menachoth 61 b. that the priest placed the fats upon the hand of the owner of the offering, with the breast and thigh above them, [and waved them]. According to their opinion, the reason why waving is mentioned only in connection with the breast, is in order to serve the basis for the interpretation which they have said: “If [the parts which are to be waved] became unclean, but one of them was left [which remained clean], whence do we know that it needs waving? Scripture therefore says, that the breast may be waved.”149In Verse 30 before us.