en_tn/isa/07/11.md

ask for it in the depths or in the height above

Yahweh uses the word "depths" and "height" to mean Ahaz could ask him for anything. (See: rc://en/ta/man/jit/figs-merism)

depths ... height

The abstract nouns "depths" and "height" can be translated with prepositions. "places far below you ... places far above you" (See: rc://en/ta/man/jit/figs-abstractnouns)