'Horsemen' in the Bible

The young man who had been relating the story answered, "I happened to be on Mount Gilboa and there was Saul, leaning on his spear! Meanwhile, the chariots and horsemen were rapidly drawing near.

David captured 1,000 of his chariots, 1,700 horsemen, and 20,000 foot soldiers. David hamstrung all the chariot horses except for enough to supply 100 chariots.