'Imperial' in the Bible

Meanwhile, down in Egypt, the Midianites sold Joseph to Potiphar, one of Pharaoh's court officials, who was also Commander-in-Chief of the imperial guards.

Meanwhile, Joseph had been delivered to Egypt and turned over to Potiphar, one of Pharaoh's court officials and the Commander-in-Chief of the imperial guards. An Egyptian, he bought Joseph from the Ishmaelites, who had brought him down there.

Your imperial guards are like the swarming grasshopper; your marshals are like hordes of grasshoppers, settling in the stone walls on a chilly day. The sun rises, and they flee away; no one knows where they went.

Then the governor's soldiers took Jesus into the imperial headquarters and gathered the whole company of soldiers around him.

As a result, it has become clear to the whole imperial guard and to everyone else that I am in prison for preaching about the Messiah.