 So that's what he's writing when he says many deceivers come in the world who do not acknowledge Jesus as coming in the flesh. He continues, any such person is the deceiver and the antichrist. Watch out so that you do not lose what you've worked for, but that you may be rewarded fully. He's talking about eternal rewards if you like studying that kind of stuff. 1 Corinthians 3, verses 10-15.