The general care of the Christian flock is the work of a pastor and, to this end, some receive the gift of being a pastor (Ephesians 4.11). By its very title, it compares to the work of a shepherd caring for his sheep, the word “pastors” being the translation of “poimenas,” a word meaning, literally, “shepherds.” A pastor is one who leads, provides, protects, and cares for his flock. As in the natural figure no small skill is required to care for the flock properly, so, in the spiritual reality, a pastor needs a supernatural gift to be, to his flock, all that a pastor should.
A significant insight into the character of a true pastor’s work is afforded by the close connection between pastoral work and teaching. In Ephesians 4.11, the use of “kai” ["and" - RZ] linking pastors and teachers instead of the usual “de” ["and," but can also mean "but" or "also" - RZ], implies that one cannot be a true pastor without being, also, a teacher. The principle involved is of tremendous significance. While it is not necessary for a teacher to have all the qualities of a pastor, it is vital to the work of a true pastor that he teach his flock. It is obvious that a shepherd who did not feed his flock would not be worthy of the name. Likewise, in the spiritual realm, the first duty of a pastor is to feed his flock on the Word of God. Quite apart from being merely an organizer, promoter, or social leader, the true pastor gives himself to preaching the Word.
From: The Holy Spirit: A Comprehensive Study of the Person and Work of the Holy Spirit by John F. Walvoord (Grand Rapids: Zondervan Publishing House, 1958), p. 170.
John Flipse Walvoord (1910-2002) was President and Professor of Systematic Theology at Dallas Theological Seminary in Dallas, Texas, from 1952 to 1986. He then served as the school’s Chancellor until shortly before his death.