It is also the rendering of a Hebrew word (shalish) meaning "a third man," or "one of three." The LXX. render in plural by tristatai; i.e., "soldiers fighting from chariots," so called because each war-chariot contained three men, one of whom acted as charioteer while the other two fought (Exodus 14:7; 15:4; 1 Kings 9:22; comp. 2 Kings 9:25). This word is used also to denote the king's body-guard (2 Kings 10:25; 1 Chronicles 12:18; 2 Chronicles 11:11) or aides-de-camp.
The Captain of our salvation is a name given to our Lord (Hebrews 2:10), because he is the author and source of our salvation, the head of his people, whom he is conducting to glory. The "captain of the Lord's host" (Joshua 5:14,15) is the name given to that mysterious person who manifested himself to Abraham (Genesis 12:7), and to Moses in the bush (Exodus 3:2,6, etc.) the Angel of the covenant. (See ANGEL.)