"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 17:2–6)."
"Aaron's rod, however, is cited twice as exhibiting miraculous power on its own, when not physically in the grasp of its owner. In Exodus 7 (Parshat Va'eira in the Torah), God sends Moses and Aaron to the Pharaoh once more, instructing Aaron that when the Pharaoh demands to see a miracle, he is to "cast down his rod" and it will become a serpent."
"When he does so, the Pharaoh's sorcerers counter by similarly casting down their own rods, which also become serpents, but Aaron's rod swallows them all. "The Pharaoh's heart is stubborn" and he chooses to ignore this bit of symbolic warning, and so the Plagues of Egypt ensue. Notably, this chapter begins with God telling Moses, "Behold, I have made you as God to the Pharaoh and your brother Aaron will be your prophet." As God transmits his word through his prophets to his people, so Moses will transmit God's message through Aaron to the Pharaoh. The prophet's task was to speak God's word on God's behalf. He was God's "mouth". (Exodus 4:15–16)
"In Numbers 16, Korah's rebellion against Moses's proclamation of the tribe of Levi as the priesthood has been quashed and the entire congregation's ensuing rebellion has resulted in a plague, ended only by the intercession of Moses and Aaron. In order to "stop the complaints" of the Israelites, God commands that each of the Twelve Tribes provide a rod; and only that of the tribe chosen to become priests will miraculously sprout overnight."
"Aaron provides his rod to represent the tribe of Levi, and "it put forth buds, produced blossoms, and bore ripe almonds" (Numbers 17:8), as an evidence of the exclusive right to the priesthood of the tribe of Levi. In commemoration of this decision it was commanded that the rod be put again "before the testimony" (Numbers 17:10). A book of the Christian Bible seems to assert (Hebrews 9:4) that the rod was kept in the Ark of the Covenant."
Then based from the website "biblicalarchaeology.org" states this on Jesus carrying a "Magic wand": Jesus Holding a Magic Wand? Supernatural Depictions of Jesus in Early Christian Art Marek Dospěl August 08, 2021: "Did Jesus use a magic wand when performing his miracles? It seems so—if we are to judge by some of the earliest depictions of Jesus in Christian art. Early Christian iconography provides us with precious insights into the esthetics of early Christians."
"Inspired by biblical and apocryphal texts, the earliest Christian imagery is also a window into the theological thinking of the third- and fourth-century followers of Jesus. Coming primarily from funerary contexts, early Christian art is especially rich in mural paintings found in catacombs and in smaller sculptures, such as sarcophagi and tombstones. It is thus no surprise that the repertoire of motifs expressed in these media is mostly associated with the afterlife and healing (physical or spiritual)."
"In his article “Jesus the Magician? Why Jesus Holds a Wand in Early Christian Art,” published in the Fall 2020 issue of Biblical Archaeology Review, Lee M. Jefferson of Centre College in Danville, Kentucky, zooms on one particular subject from the plethora of artistic motifs—Jesus holding a wand or rod while performing a healing or miracle."
“The implement that Jesus holds (sometimes called a virga or rabdos) is portrayed as either thick and ruddy, such as on the sarcophagi, or thin and reed-like, such as in catacomb paintings. He uses it in the performance of a miracle, leading several scholars to conclude that early Christians understood Jesus as a magician. The problem with this identification is that early Christians greatly maligned magic,” remarks Jefferson, before introducing the varied representations of Jesus and his miracle-working tool."
"Utterly theatrical and visualizing the authority of the new religion (Christianity), the most popular scene of early Christian funerary art was the raising of Lazarus. Jesus usually stands in front of a small shrine that holds the swaddled cadaver and he uses a wand to summon forth Lazarus from his grave, where he had been dead for four days (John 11)."
"Even though the Bible never mentions Jesus using a wand in performing his miracles, you may recall other prominent biblical figures who did use a similar tool to work miracles. Moses reportedly used a rod to separate the Red Sea to save his people from the Pharaoh’s army during their daring escape from Egypt (Exodus 14). And he later used a rod to strike the rock and provide drinking water for his fellow Israelites during their wanderings to the Promised Land (Exodus 17:2). Is this where the early Christians got the idea, or were they inspired by the pagan imagery of the larger Greco-Roman world?"
"The only other New Testament figure who can be seen using a wand to perform a miracle in early Christian art is the apostle Peter. Illustrating a legend attested in apocryphal literature, the scene usually shows Peter striking a rock with a stick, in the presence of two other figures, who wear Roman military cloaks and headgear. According to the legend, Peter during his detention in Rome miraculously opened a spring of water, which he then used to baptize his two jailers."
"Influenced by modern pop culture and literary characters, such as Harry Potter, we may be forgiven for interpreting the mysterious tool as a magic wand. The reality is even more complex and fascinating. “For early Christians, Jesus performing miracles with the staff was not magical. Rather, it was intrinsically biblical (recalling Moses) and innately ecclesial (touting the supremacy of the Church),” explains Jefferson. To dive into the various representations of Jesus with a wand and to discover their true meaning, read Lee M. Jefferson’s article “Jesus the Magician? Why Jesus Holds a Wand in Early Christian Art,” published in the Fall 2020 issue of Biblical Archaeology Review."