en_tn_condensed/mic/01/09.md

For her wound is incurable

Here "her" refers to the city of Samaria. This means nothing can stop the enemy army from destroying the people who live there. (See: rc://en/ta/man/jit/figs-metaphor)

for it has come to Judah

Micah uses contagious disease as a metaphor for the army that Yahweh has sent to judge Samaria. Here "it" refers to the "wound," that is, to the army that God will use to punish Samaria. (See: rc://en/ta/man/jit/figs-metaphor)