en_tn/isa/60/19.md

Yahweh continues speaking to the people of Israel.

Your sun will no longer set, nor will your moon withdraw and disappear

This is not to be understood literally. The sun and moon will not disappear. This is saying that in comparison to the light of Yahweh, they will be nothing. (See: rc://en/ta/man/translate/figs-metaphor and rc://en/ta/man/translate/figs-litotes)