'Horsemen' in the Bible

The young man who told him said, "As I happened by chance on Mount Gilboa, behold, Saul was leaning on his spear; and behold, the chariots and the horsemen followed hard after him.

David took from him one thousand seven hundred horsemen, and twenty thousand footmen: and David hamstrung all the chariot horses, but reserved of them for one hundred chariots.

The Syrians fled before Israel; and David killed of the Syrians [the men of] seven hundred chariots, and forty thousand horsemen, and struck Shobach the captain of their army, so that he died there.