OET interlinear JOB 26:10

uW Translation Notes:

Note 1 topic: figures-of-speech / metaphor

חֹֽק־חָ֭ג עַל־פְּנֵי־מָ֑יִם

circle described on/upon/above/on_account_of//he/it_went_in face/surface_of waters

Job is speaking as if the surface of the waters or oceans were literally their face. He is describing the horizon, which, to a land-bound observer, seems to be a limit on how far the oceans extend. If it would be clearer in your language, you could state the meaning plainly. Alternate translation: “God has placed a circular limit on the surface of the oceans”

Note 2 topic: figures-of-speech / metonymy

עַד־תַּכְלִ֖ית א֣וֹר עִם־חֹֽשֶׁךְ

until boundary light with darkness

Job implicitly means that the limit that God has placed on the extent of the oceans coincides with the bottom of the dome of the sky, which people in this culture considered to be a solid object. Beneath the dome, in which the sun, moon, and stars shone, there was light. Beyond the dome was darkness. So Job is using the boundary of light with darkness to refer by association to the sky. You could indicate this in your translation if it would be helpful to your readers. Alternate translation: “at the bottom of the dome of the sky”