קֹ֤דֶשׁ יִשְׂרָאֵל֙ לַיהוָ֔ה רֵאשִׁ֖ית תְּבוּאָתֹ֑ה כָּל־אֹכְלָ֣יו יֶאְשָׁ֔מוּ רָעָ֛ה תָּבֹ֥א אֲלֵיהֶ֖ם נְאֻם־יְהוָֽה׃ (פ)
그 때에 이스라엘은 나 여호와의 성물 곧 나의 소산 중 처음 열매가 되었나니 그를 삼키는 자면 다 벌을 받아 재앙을 만났으리라 여호와의 말이니라
Rashi
the first of His grain Like the first of the harvest before the Omer, which it is forbidden to eat, and whoever eats it is liable, so will all those who eat him be guilty. So did Jonathan render it.
Tze'enah Ure'enah
“Israel was holy to the Lord, the first fruits of his harvest” [2:3]. Israel is compared to holiness. Just like terumah, which is holy and an Israelite should not eat it, but only the priests. If an Israelite eats the terumah, he is strongly punished. In the same way, God will punish whoever persecutes Israel. They are the first fruits, that grow first and no person should eat of them before they bring the Omer offering.12Rashi, Jeremiah, 2:3.