What does Amos 9:1 mean?

I saw the Lord standing by the altar, and he said, 'Strike the top of the pillars so the thresholds shake. Shatter them on the heads of everyone, and I'll kill the rest with the sword. Not one will get away. No one will escape.' Amos 9:1 - Modern Text Bible

(God appears at the altar, ready to bring down judgment on everyone—there's no escape.)