What does Zechariah 8:13 mean?

You, people of Judah and Israel, used to be a warning to others—people would use your name as a curse. But now, I'll save you, and you'll become a blessing. So don't be afraid. Stay strong. Zechariah 8:13 - Modern Text Bible

(God is reversing their reputation from cursed to blessed, urging them to be courageous.)