en_tn/isa/24/21.md

It will come about on that day

Important event marker. If your language has a way for doing this, you could consider using it here.

the host of the high ones

AT: "evil spiritual beings" or "angels who rebelled against him"

on high

"in the heavens" or "in the sky"

They will be gathered together

AT: "Yahweh will gather them together" (See: rc://en/ta/man/translate/figs-activepassive)

and will be shut up in a prison

AT: "and he will put them in a prison"

they will be sentenced

AT: "Yahweh will sentence them" or "Yahweh will punish them"

Then the moon will be ashamed, and the sun disgraced

The sun and the moon are described as a person who is ashamed of being in front of someone with greater power. In the presence of Yahweh, the light of the moon and sun will seem less bright. (See: rc://en/ta/man/translate/figs-personification)