In the New Testament it designates the official residence of Pilate or that of the high priest (Mt. 26:3, 58, 69; Mk. 14:54, 66; Jn. 18:15). In Phil. 1:13 this word is the rendering of the Greek praitorion, meaning the praetorian cohorts at Rome (the life-guard of the Caesars). Paul was continually chained to a soldier of that corps (Acts 28:16), and hence his name and sufferings became known in all the praetorium. The "soldiers that kept" him would, on relieving one another on guard, naturally spread the tidings regarding him among their comrades. Some, however, regard the praetroium (q.v.) as the barrack within the palace (the palatium) of the Caesars in Rome where a detachment of these praetorian guards was stationed, or as the camp of the guards placed outside the eastern walls of Rome.
"In the chambers which were occupied as guard-rooms," says Dr. Manning, "by the praetorian troops on duty in the palace, a number of rude caricatures are found roughly scratched upon the walls, just such as may be seen upon barrack walls in every part of the world. Amongst these is one of a human figure nailed upon a cross. To add to the 'offence of the cross,' the crucified one is represented with the head of an animal, probably that of an ass. Before it stands the figure of a Roman legionary with one hand upraised in the attitude of worship. Underneath is the rude, misspelt, ungrammatical inscription, Alexamenos worships his god. It can scarcely be doubted that we have here a contemporary caricature, executed by one of the praetorian guard, ridiculing the faith of a Christian comrade."