Nevertheless, to the degree that we have already attained, let us walk by the same rule, let us be of the same mind. This brings out the main point of the maturity process under discussion. Every true Christian grows to some degree. To the extent to which we grow, we use that to grow further. Those who have grown in Christ in Philippi have come only so far.
Further growth is necessary.
Once some Christians realize they have grown they neglect further growth. After growing for a while, they sidetrack from growth. The most dangerous period of human development is the adolescence period. That is the time when we think we know everything. Little knowledge is dangerous because it deludes us into believing we have arrived.