'Cohort' in the Bible

Now there was a man in Caesarea named Cornelius, a centurion of what was known as the Italian Cohort.

While they were trying to kill him, a report was sent up to the commanding officer of the cohort that all Jerusalem was in confusion.

When it was decided we would sail to Italy, they handed over Paul and some other prisoners to a centurion of the Augustan Cohort named Julius.