יִשְׂא֤וּ הָרִ֓ים שָׁ֘ל֥וֹם לָעָ֑ם וּ֝גְבָע֗וֹת בִּצְדָקָֽה׃
Let the mountains bear peace to the people, and the hills, through righteousness.
Rashi on Psalms
peace for the people. Now what is the peace that the mountains bear? When they produce fruit, people will not be jealous, and “each man will call his neighbor [to come] under [his] vine and under [his] fig tree.”
Rashi on Psalms
and the hillsthrough righteousness And the hills will bear peace for them through the righteousness that they will perform.