Deuteronomy 33:15

ומראש הררי קדם AND BY THE FIRST THINGS OF THE HILLS OF קדם (taken in the sense of: the hills priority) — the meaning is: and it is blessed through the earliest ripening of the fruits, because its hills are earliest (קדם, "prior") to bring their fruits to maturity. – Another explanation: this tells us that their creation (the creation of the hills in the territory of Joseph) was prior (קדם) to that of all other hills (Sifrei Devarim 353:4). גבעות עולם [AND THROUGH THE PRECIOUS THINGS OF] THE EVERLASTING HILLS — i.e., of hills which everlastingly (עולם) produce fruit, and do not cease to do so through restraint of rain.

וּמֵרֹ֖אשׁ הַרְרֵי־קֶ֑דֶם וּמִמֶּ֖גֶד גִּבְע֥וֹת עוֹלָֽם׃

and for the chief things of the ancient mountains, and for the precious things of the primordial hills,