וְאֶ֙שֶׁד֙ הַנְּחָלִ֔ים אֲשֶׁ֥ר נָטָ֖ה לְשֶׁ֣בֶת עָ֑ר וְנִשְׁעַ֖ן לִגְב֥וּל מוֹאָֽב׃
And the slope of the valleys That inclineth toward the seat of Ar, And leaneth upon the border of Moab.—
Find Talmudic references to Numbers 21:15: , passages from the Talmud Bavli and Yerushalmi.