Where the name comes from
Mastema is not a personal name found in the books of the Bible. It appears in the Book of Jubilees, an ancient Jewish work that retells parts of Genesis and Exodus. In that book, Mastema is presented as a hostile spiritual figure, connected with temptation, accusation, and harmful spirits.
The word behind the name is related to hostility or enmity. That helps explain the character's role. Still, Christians should distinguish between an ancient religious writing and Scripture itself. The Bible warns against adding to God's revealed word, and it calls believers to hold firmly to the faith handed down through the apostles (Deuteronomy 4:2; Jude 1:3).
Is Mastema another name for Satan?
It may be simplest to say that Mastema resembles Satan, rather than claiming the two are certainly identical. Jubilees gives Mastema a role much like the devil's role in the Bible, as an opponent who tries to draw people into sin. But the Bible normally uses names such as Satan, the devil, the tempter, and the adversary.
Revelation identifies the serpent who deceived humanity with the devil and Satan (Revelation 12:9). Jesus also speaks of Satan seeking to test Simon Peter, while assuring Peter that he would be sustained through it (Luke 22:31-32). Those passages tell us what we need to know about the spiritual enemy without introducing Mastema as a biblical name.
And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.
God is not the source of evil
Stories about hostile spiritual powers can raise a fair question: does God send temptation? Scripture draws a clear line. God may allow testing, as he allowed Satan to afflict Job within firm limits, but God himself does not tempt anyone to sin (Job 1:8-12; James 1:13).
That distinction matters. Evil spirits are real in the Bible's picture of the world, yet they are not equal to God and do not operate beyond his authority. Job's suffering was painful and mysterious, but Satan could act only by permission. Christians don't need to be fascinated by names and rankings of dark powers to trust God's care.
Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man:
How to respond wisely
If you come across Mastema in a book, video, or discussion, you don't need to panic or dismiss every question. Test what you hear. John tells believers not to accept every spiritual claim without discernment, and Paul describes the Christian life as standing firm against spiritual evil through God's strength (1 John 4:1; Ephesians 6:11-12).
Keep the focus where the Bible keeps it: on Jesus, truth, prayer, and faithful obedience. James says that resisting the devil belongs alongside drawing near to God (James 4:7-8). Mastema may be an interesting figure from ancient literature, but the Bible's central message is not about decoding obscure spiritual names. It is about God's rescue and the victory of Christ.