Spiritual formation is not complete until it brings about multiplication. The goal of the Christian life is multiplication. As believers, we are not called to just grow ourselves, but to help others grow.
Pastor Daniel Nwachinemere, in this sermon, highlights that the command to multiply was not given to Adam alone, but to all men. He explains that the gospel is not supposed to end with us, but we are to be vessels through which it passes on to others. The great commission is not a call for us to just make converts, but to make disciples. A disciple is one that is taught, formed, trained and sent.
As believers, we must be producing fruit. We have in us already, the capacity for exponential growth.