We must fight to maintain God’s truth in our local congregations. We must oppose those who would claim to have knowledge and authority beyond that which is given to us in the Bible.
False teachers/doctrine can be identified. The only remaining question is whether or not we care to identify them and contend for the faith. It is easier to go along with the status quo than to challenge it. And standing up for truth requires that we ourselves know the truth. However, to fail to contend for the faith is to be derelict in our service to Christ.
We must contend for our faith, by fighting for holiness, standing against false teaching and demonstrating, by the obedient lives we live, the truth of the Gospel: that it is possible for a man to live for God, it is possible to be holy.
Mercy makes sanctification (holiness) possible, peace makes preservation possible, and love makes service/ministry (our calling) possible.