No, God is triune, and the devil is most decidedly not. I don't think this is a good starting point.
Much love!
But actually, this statement is a fact biblically speaking. God is one God in three Persons: Father, Son and Holy Spirit (Matthew 28:19, 1 John 5:7). The devil being the great counterfeiter, has also created an unholy trinity that mock and oppose God’s holy Trinity. Revelation helps us to see this in all its horror:
The Dragon (Satan) – pretends to be God the Father and wants worship and authority (Revelation 12:9, 13:4).
The Beast (Antichrist) – pretends to be like Christ, exercising authority over the nations, performs signs, and demands worship (Revelation 13:1–8).
The False Prophet – pretends to be a counterfeit Holy Spirit, pointing people to worship the Beast, signs and wonders to deceive people, and enforces people’s loyalty (Revelation 13:11–15).
The result is a three-headed beast as in the card game, Skull and Crossbones. Just as there is a true God, we see a counterfeit trinity, planned to deceive the world. The Antichrist is a counterfeit savior, the False Prophet heralds his worship, and Satan behind the scene makes it happen. It’s no wonder then that Jesus in Matthew 24: 24 said, “For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.”
The devil never creates, he counterfeits. He imitates God’s design to deceive people away from the truth. The end is already written in advance: Christ will shatter this unholy trinity. Revelation 20: 10 says, “And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.”