אִם־יַחְתְּר֣וּ בִשְׁא֔וֹל מִשָּׁ֖ם יָדִ֣י תִקָּחֵ֑ם וְאִֽם־יַעֲלוּ֙ הַשָּׁמַ֔יִם מִשָּׁ֖ם אוֹרִידֵֽם׃
Though they dig into the nether-world, Thence shall My hand take them; And though they climb up to heaven, Thence will I bring them down.
Rashi
My hand shall take them—Their enemies shall take them with My word. -[from Jonathan]
Rashi
and if they ascend to the heavens—And if they ascend to the lofty mountains up to the heavens, from there they shall bring them down with My word.