the devil, slanderer
The word διάβολος comes from the verb διαβάλλω, which means to throw across, to hurl between, or to bring charges against someone. The compound breaks down into διά (through, across, between) and βάλλω (to throw, to cast). So at its literal core, διάβολος describes someone who throws words between people, someone who hurls accusations across a relationship in order to break it apart.
In secular Greek, the word carried the sense of a slanderer, an accuser, someone who trafficked in false or damaging reports. A διάβολος was a wedge person. Someone who inserted themselves between two parties and corrupted the connection with distorted information.
The biblical authors inherited this word and loaded it with its full cosmic weight. In the New Testament, διάβολος names the personal enemy of God and humanity. He is not merely a negative force or a symbol of evil. He is a being who operates through accusation and deception, specifically targeting the relational bond between God and his people. He accused Job before the throne. He slandered God's character to Eve in the garden. He tempted Jesus in the wilderness with twisted versions of Scripture itself.
The genius of the name is that it tells you exactly how he works. He doesn't primarily confront you with raw power. He throws words between you and God. He throws suspicion between you and your brothers and sisters. The weapon is the tongue, the insinuation, the half-truth that turns trust into doubt. Understanding this word reveals that spiritual warfare is, at its foundation, a battle over what you believe about God and what God thinks about you.
Most of us picture the devil as a horned villain who tempts people into obvious evil. I carried that image for years. It made spiritual warfare feel distant and dramatic, something reserved for exorcists and extreme circumstances.
But διάβολος says something quieter and more terrifying. He is the slanderer. The one who throws words into the space between you and God, and between you and the people you love. Every whispered lie that God doesn't actually care about you, every distorted reading of a friend's action, every accusation your own heart rehearses in the dark at 2 a.m. carries the fingerprints of this word.
Spiritual warfare isn't always dramatic. Sometimes it looks exactly like ordinary doubt and ordinary isolation. Knowing this word makes the ordinary feel urgent again.
From the verb διαβάλλω (diaballō), itself built from the preposition διά (through, across) and βάλλω (ballō, to throw or cast). The βάλλω root is enormously productive in Greek, generating words like ἐκβάλλω (to cast out), καταβάλλω (to throw down), and the noun βολή (a throw or cast). The prefix διά intensifies the sense of something being thrown between parties, creating division. The noun form διάβολος is closely related to the noun διαβολή, meaning slander or false accusation.
Where diabolos appears in Scripture, and why each verse showcases it.
Then Jesus was led up by the Spirit into the wilderness to be tempted by the devil.
Matthew uses διάβολος throughout the temptation narrative, placing Jesus in direct confrontation with the slanderer. The passage shows how the διάβολος works, not through raw force, but through twisted use of Scripture and distorted pictures of who God is.
You are of your father the devil, and your will is to do your father's desires. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he lies, he speaks out of his own character, for he is a liar and the father of lies.
Jesus connects the διάβολος directly to falsehood and murder, showing that slander and deception are not mere tactics but the very nature and character of the enemy.
Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour.
Peter pairs διάβολος with the word ἀντίδικος, a legal term for an opponent in a lawsuit, deepening the accusatory dimension of the enemy's identity and calling believers to active, clear-eyed resistance.
And I heard a loud voice in heaven, saying, 'Now the salvation and the power and the kingdom of our God and the authority of his Christ have come, for the accuser of our brothers has been thrown down, who accuses them before our God day and night.'
This verse captures the διάβολος in his most characteristic activity, standing before God and leveling accusations against believers continuously. The victory of Christ is announced precisely as the silencing of this accuser.
Their wives likewise must be dignified, not slanderers, sober-minded, faithful in all things.
Paul uses διάβολος here not as a title for Satan but as a character description for a type of person, someone who slanders. This usage anchors the word's everyday meaning and shows how human gossip and false accusation participate in the same destructive work.
Words in the same semantic family.
Every video where Adam teaches on this word, in publication order.
This word is studied in depth in the following monthly Bible studies.
