It belongs to those in the office of elder, both severally and jointly, to watch diligently over the flock committed to his charge, that no corruption of doctrine or of morals enter therein. They must exercise government and discipline... They should visit the people at their homes, especially the sick. They should instruct the ignorant, comfort the mourner, nourish and guard the children of the Church. They should set a worthy example to the flock… They should pray with and for the people, being careful and diligent in seeking the fruit of the preached Word among the flock.
(Book of Church Order of the PCA, Chapter 8-3)