In the culture of the Israelites, the rod (Hebrew: מַטֶּה‎ maṭṭeh) was a natural symbol of authority, as the tool used by the shepherd to correct and guide his flock (Psalm 23:4). Moses's rod is, in fact, cited in Exodus 4:2 as carried by him while he tended his sheep; and later (Exodus 4:20) becomes his symbol of authority over the Israelites (Psalm 2:9, Psalm 89:32, Isaiah 10:24 and 11:4, Ezekiel 20:37). The rods of both Moses and Aaron were endowed with miraculous power during the Plagues of Egypt (Exodus 7:17, 8:5, 8:16-17, 9:23, and 10:13); God commanded Moses to raise his rod over the Red Sea when it was to be parted (Exodus 14:16) and in prayer over Israel in battle (Exodus 17:9); Moses brings forth water from a stone using his rod (Exodus 17, Numbers 20:11).