וַיִּקַּ֗ח אֶֽת־כָּל־הַחֵלֶב֮ אֲשֶׁ֣ר עַל־הַקֶּרֶב֒ וְאֵת֙ יֹתֶ֣רֶת הַכָּבֵ֔ד וְאֶת־שְׁתֵּ֥י הַכְּלָיֹ֖ת וְאֶֽת־חֶלְבְּהֶ֑ן וַיַּקְטֵ֥ר מֹשֶׁ֖ה הַמִּזְבֵּֽחָה׃
I wziął cały łój pokrywający trzewa, i przeponę nad wątrobą i obie nerki, i łój ich, i puścił z dymem na ofiarnicy;
Rashi
הכבד [AND THE LOBE OF] THE LIVER — i. e. he took it (the lobe) besides some of the liver — it means that he took a little of the liver with it (the lobe).
Siftei Chakhamim
Aside from the liver. Here, the Torah does not say על הכבד, only Rashi writes it here. His proof is from what it says here יותרת הכבד (the lobe of the liver). If so, why does it mention in Parshas Tetzaveh (Shemos 29:13): “על הכבד (the lobe on the liver),” and not יותרת הכבד, as it says here? Rather, the word על mentioned above is to expound that he takes a small part of the liver (Divrei Dovid).
Ibn Ezra
He took all the fat on the stomach the earlier verse [7:3] has “that covers the stomach”; yet another verse [3:3] says, “that covers the stomach, and all the fat on the stomach.” Understand the following: a great deal of fat covers the stomach, while only a small amount of fat, here and there, is actually on the stomach. Moreover, fat that covers the stomach can also be said to be on the stomach. For these reasons, Scripture employs brevity here.