Targum Ulangan 33:15: Targum Jonathan & Targum Jerusalem

and with the goodness through the birthright ordained of the mountain tops, him at the beginning by the benediction of the fathers who resemble the mountains, and with the goodness of the hills whose produce faileth not, which was given him in heritage by the benedictions of the mothers of old, who resemble the hills;

It aboundeth in fruitfulness for the righteousness sake of Abraham, Izhak, and Jakob, the holy fathers who are like the mountains, and for the merit of Sarah, Revekah, Rahel, and Leah, the four mothers who are like the hills.