Mastema

Mastema is an angel who pursues evil in Hebrew folklore. He executes the punishments of God. It tempts humans and tests their faith. He asked God to allow him to have demons like his subordinates. In the Zadokite fragments and the Dead Sea Scrolls, he is the angel of catastrophe, the father of all evil, and a flatterer of God. His name is that of an arch-demon who appears for the first time in the literature of the period of the Second Temple Period of Israel, as a personification of the Hebrew word "mastemah", meaning "hatred", "hostility", "enmity "or" persecution. " It is said that it took human form and, with the passage of time, it was observing the humanity. Hosea

And, Oceans 9.7-8:

7-The days of punishment came, the days of retribution came; and Israel shall know it. Foolish is the prophet, foolish is the man of spirit, because of the multitude of your wickedness, and great hatred. 8 - Ephraim is with my God; the prophet is a snare of a hunter in all his ways, hatred in the house of his God. Book of Jubilees

According to the book of Jubilees, Mastema "hostility" is the chief of the demons engendered by fallen angels with women; perhaps one of those same demons. His actions and name indicate that it is Satan, the "adversary," but more the satan who appears in the Book of Job with a function to fulfill under God than the Satan of the later tradition, who is the ultimate enemy of God. Belial, mentioned twice in Jubilees, is likely to be identical to Mastema in this work. When God is ready to destroy all these demons after the flood and Noah so that his people will be freed from evil, Mastema intervenes, begging God to allow him to maintain and control a tenth of these demons in order to to exercise their authority, with the intention of corrupting and deflecting before my judgment, because the wickedness of the children of men is great. Thus Mastema is the tester of human beings with the permission of God.

Mastema sent a plague of birds into the earth in the days of Terah.

Later Mastema advised God to test Abraham (Jubilees 17: 15-16) just as Satan in the book of Job wants permission to test Job. As Abraham prepares to sacrifice his son Isaac, Mastema stands in the presence of God. On his deathbed Isaac promises that the spirits of Mastema will have no power to turn Jacob or his descendants out of Yahweh. The strange account in (Exodus 4:24), where Yahweh meets Moses on the road and tries to kill him, is told in a manner that attributes the attack to Mastema (Jubilees 48: 1-3). It is said that Mastema helped the Egyptian priests who opposed Moses. It is also said that Mastema had been chained while the Israelites left Egypt, but then went to encourage the Egyptians to persecute the Israelites and thus reach their destination in the Red Sea.

On the other hand, the death of the firstborn of the Egyptians are attributed to "all the powers of Mastema."

wiki