The Greek word (praitorion) thus rendered in Mark 15:16 is rendered "common hall" ( Matthew 27:27 , marg., "governor's house"), "judgment hall," (John 18:28,33 , marg., "Pilate's house", 19:9; Acts 23:35 ), "palace" (Philippians 1:13 ). This is properly a military word. It denotes (1) the general's tent or headquarters; (2) the governor's residence, as in Acts 23:35 (RSV, "palace"); and (3) the praetorian guard (See PALACE), or the camp or quarters of the praetorian cohorts ( Acts 28:16 ), the imperial guards in immediate attendance on the emperor, who was "praetor" or commander-in-chief.

Copyright Statement
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain.

Bibliography Information
Easton, Matthew George. Entry for 'Praetorium'. Easton's Bible Dictionary. https://www.studylight.org/dictionaries/eng/ebd/p/praetorium.html. 1897.

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Easton's Bible Dictionary

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Praetorium