King James Version (KJV)
Thou shalt also decree a thing, and it shall be established unto thee: and the light shall shine upon thy ways.
Modern English
You will decide on a matter, and it will be established for you, and light will shine on your ways.
Hebrew
וְתִגְזַ֣ר אֹ֭מֶר וְיָ֣קָם לָ֑ךְ וְעַל דְּרָכֶ֥יךָ נָ֝גַהּ אֽוֹר׃
vtigzar ʾomer vyaqam lak vʿal drakeyka nagah ʾvor