And JAMBRES were two of the principal Egyptian magicians, who withstood Moses and Aaron by attempting to imitate the miracles, which they exhibited. See Ex 7:11, etc. These names are not found in the Old Testament, but are often mentioned in the rabbinical books, 2Ti 3:8.
Jan'nes and Jambres. Jam'bres
These are mentioned by Paul as having withstood Moses; to whom he compares those who by imitation were resisting the truth in the church. 2Ti 3:8. Jannes and Jambres were doubtless the leaders of the Egyptian magicians who imitated the first plagues before Pharaoh; but who, when it was a question of the creation of life, had to confess that the finger of God was there. The judgement of God fell upon them also, for they were smitten with the boils and blains. As their folly was manifest in contending with the God of Israel, so shall be the folly of those who oppose the truth.
JANNES and JAMBRES, or, as Pliny calls them, Jamne and Jotape, two magicians, who resisted Moses in Egypt, 2Ti 3:8. He speaks, likewise, of the faction or sect of magicians, of which, he says, Moses, Jannes, and Jocabel, or Jopata, were heads. By this last word he meant probably the patriarch Joseph. whom the Egyptians considered as one of their most celebrated sages. The Mussulmans have several particulars to the same purpose. The paraphrast Jonathan says they were the sons of Balaam, who accompanied him to Balak, king of Moab. They are called by several names in several translations; by the Septuagint, ???????, poisoners, and ????????, enchanters; by Sulpitius Severus, Chaldaeans, that is, astrologers; by others, sapientes and malefici, wise men, that is, so esteemed among the Egyptians, philosophers, and witches. Artapanus tells us, that Pharaoh sent for magicians from Upper Egypt to oppose Moses. Ambrosiaster, or Hilary, the deacon, says they were brothers. He cites a book entitled "Jannes and Mambres," which is likewise quoted by Origen, and ranked as apocryphal by Pope Gelasius. Some of the Hebrews call them Janes and Jambres; others, Jochana and Mamre, or Jonas and Jombros. Jerom translates their names Johannes and Mambres; and there is a tradition, they say, in the Talmud, that Juhanni and Mamre, chief of Pharaoh's physicians, said to Moses, "Thou bringest straw into Egypt, where abundance of corn grew;" that is, to bring your magical arts hither is to as much purpose as to bring water to the Nile. Some say their names are the same as John and Ambrose. Some will have it that they fled away with their father; others, that they were drowned in the Red Sea with the Egyptians; others, that they were killed by Phinehas in the war against the Midianites. Numenius, cited by Aristobulus, says that Jannes and Jambres were sacred tribes of the Egyptians, who excelled in magic at the time when the Jews were driven out of Egypt. See PLAGUES OF EGYPT.