כֹּ֣ל ׀ תְּרוּמֹ֣ת הַקֳּדָשִׁ֗ים אֲשֶׁ֨ר יָרִ֥ימוּ בְנֵֽי־יִשְׂרָאֵל֮ לַֽיהוָה֒ נָתַ֣תִּֽי לְךָ֗ וּלְבָנֶ֧יךָ וְלִבְנֹתֶ֛יךָ אִתְּךָ֖ לְחָק־עוֹלָ֑ם בְּרִית֩ מֶ֨לַח עוֹלָ֥ם הִוא֙ לִפְנֵ֣י יְהוָ֔ה לְךָ֖ וּלְזַרְעֲךָ֥ אִתָּֽךְ׃
Ang lahat ng mga handog na ibinubukod mula sa mga banal na handog, na ibinubukod ng mga anak ni Israel para sa Walang-Hanggan, ay ibinigay Ko sa iyo, at sa iyong mga anak na lalaki at sa iyong mga anak na babae na kasama mo, bilang takdang bahagi magpakailanman; ito ay isang walang-hanggang tipan ng asin sa harap ng Walang-Hanggan para sa iyo at sa iyong lahi na kasama mo.
Mekhilta DeRabbi Yishmael
Before Aaron was chosen, all of Israel were kasher for the priesthood. Once he was chosen, the rest of Israel were excluded. As it is written (Numbers 18:19) "An everlasting covenant of salt is it (the priesthood) before the L–rd for you (Aaron) and for your sons," and (Numbers 25:13) "And it shall be unto him and to his seed after him the covenant of an everlasting priesthood."
Mekhilta DeRabbi Yishmael
And whence is it derived that the Torah scroll was given unconditionally? From (Devarim 33:4) "The Torah which Moses commanded us is the (eternal) inheritance of the congregation of Jacob." Whence is it derived that the covenant with Aaron was made unconditionally? From (Numbers 18:19) "It is a covenant of salt forever," (Ibid. 25:13) "And it shall be unto him and to his seed after him a covenant of eternal priesthood."
Midrash Tanchuma
Why did the Shekhinah appear in the land of Egypt? To teach us that prior to the selection of the land of Israel, all lands merited the revelation of the Holy One, blessed be He, but that after the land of Israel was selected, all other lands were disqualified. Similarly, before Jerusalem was chosen, the entire territory of Israel merited the revelation of the Divine Word, but after Jerusalem was selected, the Divine Word forsook the remainder of the land. Likewise, before the Temple was designated, the city of Jerusalem was considered suitable for the words of the Shekhinah, but after the establishment of the Temple, it removed itself from the rest of Jerusalem, as it is written: For the Lord hath chosen Zion, He hath desired it for His habitation (Ps. 132:13). And it says also: That is My resting place forever; here will I dwell; for I have desired it (ibid., v. 14). Prior to the selection of Aaron, every Israelite merited priesthood, as it is said: It is an everlasting covenant of salt (Num. 18:19), but after he was selected the other Israelites were deemed unfit for priesthood, as it is said: And it shall be unto him, and to his seed after him, the covenant of an everlasting priesthood (ibid. 25:13). Before David was chosen, all Israelites were eligible for kingship, but after the selection of David, all Israelites lost the right of kingship, as it is said: Ye have nothing to do with us to build a house unto our God; but we ourselves together will build unto the Lord, the God of Israel (Ezra 4:3).