Acts 21:31

While they were trying to kill him, the commander of the Roman regiment received a report that all Jerusalem was in turmoil.

Note Literally the commander of the cohort

BSB · Berean Standard Bible
And as they went about to kill him, tidings came unto the chief captain of the band, that all Jerusalem was in an uproar.
KJV · King James Version
As they were trying to kill him, news came up to the commanding officer of the regiment that all Jerusalem was in an uproar.
WEB · World English Bible
And as they were seeking to kill him, tidings came up to the chief captain of the band, that all Jerusalem was in confusion.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

as
Acts 22:22; Acts 26:9, 10; John 16:2; 2 Corinthians 11:23–33
chief
Acts 23:17; Acts 24:7, 22; Acts 25:23; John 18:12
that all
Acts 21:38; Acts 17:5; Acts 19:40; 1 Kings 1:41; Matthew 26:5; Mark 14:2