What does Isaiah 63:3 mean?

'I was alone when I stomped the winepress. No one was with me. In my anger, I crushed them; in my fury, I trampled them. Their blood splattered my clothes and stained everything I was wearing.' Isaiah 63:3 - Modern Text Bible

(The figure explains he acted alone, bringing judgment and justice, and the red on his clothes is from the defeat of his enemies.)