common hall = Praetorium. In Mar_15:16 it is called the aule, or open courtyard (compare Mat_26:3). In Joh_18:28, Joh_18:33; Joh_19:9, it is Pilate's house, within the aule.
unto = against. Greek. epi. App-104. Not the same as in verses: Mat_27:19, Mat_27:33, Mat_27:45, Mat_19:62.
band. Render "cohort" and omit "of soldiers". The cohort contained about 600 men.