The Bible refers to "Hittites" in several passages, ranging from Genesis to the post-Exilic Ezra–Nehemiah. The Hittites are usually depicted as a people living among the Israelites—Abraham purchases the Patriarchal burial-plot of Machpelah from "Ephron HaChiti", Ephron the Hittite; and Hittites serve as high military officers in David's army. In 2 Kings 7:6, however, they are a people with their own kingdoms (the passage refers to "kings" in the plural), apparently located outside geographic Canaan, and sufficiently powerful to put a Syrian army to flight.