'Army' in the Bible

It happened at that time, that Abimelech and Phicol the captain of his army spoke to Abraham, saying, "God is with you in all that you do.

So they made a covenant at Beersheba. Abimelech rose up with Phicol, the captain of his army, and they returned into the land of the Philistines.

Then Abimelech went to him from Gerar, and Ahuzzath his friend, and Phicol the captain of his army.

When he saw them, Jacob said, "This is God's army." He called the name of that place Mahanaim.