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Yes,some believe that 666 is the mark of the Biblical antichrist. Others say that it signifies some form of compulsory identification, such as a tattoo or an implanted microchip with a digital code that identifies the person as a servant of the beast. Still others hold that 666 is the mark of the Catholic papacy.
These fanciful and contrived interpretations, however, are very different from what the Bible itself says about the mark of the beast, as we shall see. The Bible does reveal that those with the mark will experience God’s wrath. Understanding the meaning of 666, therefore, is much more than just solving an intriguing puzzle. Happily, God, the very personification of love and the Source of spiritual light, has not kept his true servants in the dark on this important matter. (2 Timothy 3:16)