2 John 7 For many deceivers have gone out into the world, those who do not confess the coming of Jesus Christ in the flesh. Such a one is the deceiver and the antichrist. 8 Watch yourselves, so that you may not lose what we have worked for, but may win a full reward. 9 Everyone who goes on ahead and does not abide in the teaching of Christ, does not have God. Whoever abides in the teaching has both the Father and the Son.
Just like Jesus’ day, Paul and John’s day, we live in a day and age when people like to get out in front with new doctrines. They like to be “relevant.” They like to change things and be creative in the formulation of doctrine. One of the marks though of an unbeliever is that they are discontent with doctrine. They desire to go on out ahead, rather than sticking to the faith that has been given to the saints 'once for all'.
The Christian is to be unoriginal in his teaching. Why? Because he stick to what Jesus has said--what Scripture has revealed.
We abide in these teaching. We remain steadfast, immovable.
Our doctrine is to be uninventive because we are dwelling, remaining, staying on Christ’s Words. If you here a preacher or a church bringing some new teaching it is most likely abandoning sound doctrine--it is failing to abide.