Passage
For many deceivers have gone out into the world, those who do not confess Jesus Christ as coming in the flesh. This is the deceiver and the antichrist.
2 John 1:7 (LSB)
Nearby Context
2 John 1:5 Now I ask you, lady, not as though I were writing to you a new commandment, but the one which we have had from the beginning, that we love one another.
2 John 1:6 And this is love, that we walk according to His commandments. This is the commandment, just as you have heard from the beginning, that you should walk in it.
2 John 1:7 For many deceivers have gone out into the world, those who do not confess Jesus Christ as coming in the flesh. This is the deceiver and the antichrist.
2 John 1:8 See to yourselves, that you do not lose what we accomplished, but that you may receive a full reward.
2 John 1:9 Anyone who goes too far and does not abide in the teaching of Christ, does not have God. The one who abides in the teaching, he has both the Father and the Son.
Study Lenses
The verse centers on "world", "deceivers", "gone", "confess", "jesus", "christ", "coming", and "flesh". It is saying that the verse draws attention to "world" and "deceivers", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 6's "And this is love that we walk..." into verse 8's "See to yourselves that you do not...", so "world" and "deceivers" belong inside that flow. In 2 John context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "world" and "deceivers" with trust shaped by these words, not by a vague optimism outside the passage.