'Captain' in the Bible

Pekah the son of Remaliah, his captain, conspired against him, so he attacked him in Samaria in the citadel fortress of [the] palace of the king, with Argob and Arieh. With him [also were] fifty men from the children of the Gileadites, and he killed him and became king in his place.

How {can you repulse a single captain among the least of the servants of my master}? [Yet] you rely for yourself on Egypt for chariots and horsemen!