Believers are children of God—a phrase that presumes family. The “children of God” are also called “holy ones” (“saints” in most translations). But these familiar New Testament terms have an Old Testament context that is largely overlooked—the spiritual world of God and his supernatural children. In the Old Testament, “sons of God” and “holy ones” refers to supernatural beings whose Father is God and who work with God to carry out his will. Learn where the metaphor of being in God’s family comes from in the Old Testament and how that informs our sense of identity and mission as believers.