en_tn/2ch/36/23.md

all the kingdoms of the earth

This is an exaggeration, as there were kingdoms over which Cyrus did not rule. (See: rc://en/ta/man/translate/figs-hyperbole)

to build a house for him

Here the word "house" represents a temple. AT: "to build a temple for him" (See: rc://en/ta/man/translate/figs-metonymy)

his people

"Yahweh's people"

Let him go up to the land

"Let that person go up to the land of Judah"