'Themselves' in the Bible

And the sons of Benjamin gather themselves together after Abner, and become one troop, and stand on the top of a certain height,

And the Bene-Ammon come out, and set battle in array, at the opening of the gate, and Aram of Zoba, and Rehob, and Ish-Tob, and Maacah, are by themselves in the field;

Sons of a stranger fade away, And gird themselves by their close places.

And after him is Eleazar son of Dodo, son of Ahohi, of the three mighty men with David; in their exposing themselves among the Philistines -- they have been gathered there to battle, and the men of Israel go up --