ציטירנדיקער פּירוש אויף במדבר 4:12

‎ואת בגדי השרד AND THE GARMENTS OF THE SERVICE — I think — according to the plain sense of the verse — that one cannot say that Scripture is here speaking of (referring to) the priestly garments, because to them refer the next words: “and the garments of holiness for Aaron the priest, and the garments of his sons to minister as priests”. But these בגדי שרד are identical with the garments of blue purple wool, and red purple wool, and crimson wool which are mentioned in the chapter (Numbers IV.) giving an account of Israel’s encampments: (Numbers 4:12) “and they shall put them in a garment of blue purple”; (Numbers 4:13) “and spread a garment of red purple thereon”; (Numbers 4:8) “and they shall spread upon them a garment of crimson”. And indeed my opinion appears correct, because it is said, (Exodus 39:1) “And of the blue purple, and of the red purple, and of the crimson, they made garments of the service (בגדי שרד) to minister in the holiness”, and linen is not mentioned among them (these materials). Now if Scripture were speaking of the priestly garments it could not have omitted “linen”“, for we do not find in respect of even one of them (of the priestly garments) mention of red purple or crimson without linen.

der Dienstgeräte. weil auch diese nur für den Dienst im Heiligtum vorgeschrieben waren (Num. 4, 12).

ארור אתה אשר פצתה את פיה, ”you are cursed more than the ground which opened its mouth, etc.” The meaning may be “you are cursed (separated) from the ground (which was your source of sustenance) which has opened its mouth, etc. From now on the earth would not yield its produce to you voluntarily.
The second curse was that even if Kayin would labour mightily to make the earth yield its produce the way it had done previously. This is why the Torah said in verse 12 —