King James Version (KJV)
And in mercy shall the throne be established: and he shall sit upon it in truth in the tabernacle of David, judging, and seeking judgment, and hasting righteousness. {established: or, prepared}
Modern English
A throne will be established in loving kindness. One will sit on it in truth, in the tent of David, judging, seeking justice, and swift to do righteousness.
Hebrew
וְהוּכַ֤ן בַּחֶ֙סֶד֙ כִּסֵּ֔א וְיָשַׁ֥ב עָלָ֛יו בֶּאֱמֶ֖ת בְּאֹ֣הֶל דָּוִ֑ד שֹׁפֵ֛ט וְדֹרֵ֥שׁ מִשְׁפָּ֖ט וּמְהִ֥ר צֶֽדֶק׃
vhvkan baḥesed kiseʾ vyashab ʿalayv beʾemet bʾohel david shopeṭ vdoresh mishpaṭ vmhir ṣedeq