'Horsemen' in the Bible

The young man who [was] reporting to him said, "I merely happened to be on Mount Gilboa. Here Saul [was] leaning on his spear, and look, the chariots and the horsemen [were] getting close to him.

David captured from him one thousand and seven hundred horsemen and twenty thousand {foot soldiers}. David hamstrung all the chariot horses, but {from them} he spared a hundred chariot horses.

And Aram fled before Israel, and David killed from [the] Arameans seven hundred chariot teams and forty thousand horsemen. He struck down Shobach, the commander of his army, and he died there.