en_tn/act/21/31.md

news came up to the chief captain of the cohort

Here "news" refers to the messenger who went to speak the news. Alternate translation: "someone gave news to the chief captain of the cohort" (See: rc://en/ta/man/jit/figs-metonymy)

news came up to the chief captain

The phrase "came up to" is used because the chief captain was in a fortress connected to the temple that was higher in elevation than the temple courtyard.

the chief captain

a Roman military officer or leader of about 600 soldiers

the cohort

a group of about 600 soldiers

all Jerusalem was in an uproar

The word "Jerusalem" here represents the people of Jerusalem. The word "all" is an exaggeration to show a large crowd was upset. Alternate translation: "a lot of people in Jerusalem were in an uproar" (See: rc://en/ta/man/jit/figs-hyperbole and rc://en/ta/man/jit/figs-metonymy)