הַרְנִ֤ינוּ גוֹיִם֙ עַמּ֔וֹ כִּ֥י דַם־עֲבָדָ֖יו יִקּ֑וֹם וְנָקָם֙ יָשִׁ֣יב לְצָרָ֔יו וְכִפֶּ֥ר אַדְמָת֖וֹ עַמּֽוֹ׃ (פ)
Sing aloud, O ye nations, of His people; For He doth avenge the blood of His servants, And doth render vengeance to His adversaries, And doth make expiation for the land of His people.
Read halakhic rulings (Jewish law) on Deuteronomy 32:43: and classical halakhic sources.