Adam Clarke on Philippians 1:13

My bonds - are manifest in all the palace - In consequence of the public defense which he was obliged to make, his doctrines must be fully known in the court, and throughout the whole city, as on his trial he would necessarily explain the whole. The praetorium, πραιτωριον, which we here translate palace, signifies the court where causes were heard and judged by the praetor or civil magistrate; it sometimes signifies the general's tent, and at others, the emperor's palace. It is supposed that it is used in this latter sense here. There were, no doubt, persons belonging to the emperor's household who would bring the news of so remarkable a case to the palace; for we find that there were Christians even in Caesar's household; Phi 4:22.