כִּסְאֲךָ֣ אֱ֭לֹהִים עוֹלָ֣ם וָעֶ֑ד שֵׁ֥בֶט מִ֝ישֹׁ֗ר שֵׁ֣בֶט מַלְכוּתֶֽךָ׃
Tu trono, oh Dios, eterno y para siempre: Vara de justicia la vara de tu reino.
Rashi on Psalms
Your throne, O judge Your throne, O prince and judge, shall exist forever and ever, as the matter that is stated (Exod. 7:1): “I have made you a judge (נתתיך אלהים) over Pharaoh.” And why? Because “a scepter of equity is the scepter of your kingdom,” that your judgments are true, and you are fit to govern.