Fifth, the church is recognized externally by the fact that it consecrates or calls ministers, or has offices that it is to administer. There must be bishops, pastors, or preachers, who publicly and privately give, administer, and use the aforementioned four things or holy possessions in behalf of and in the name of the church, or rather by reason of their institution by Christ, as St. Paul states in Ephesians 4 [:8], “He received gifts among men …”—his gifts were that some should be apostles, some prophets, some evangelists, some teachers and governors, etc. The people as a whole cannot do these things, but must entrust or have them entrusted to one person. Otherwise, what would happen if everyone wanted to speak or administer, and no one wanted to give way to the other? It must be entrusted to one person, and he alone should be allowed to preach, to baptize, to absolve, and to administer the sacraments. The others should be content with this arrangement and agree to it. Wherever you see this done, be assured that God’s people, the holy Christian people, are present. (Luther’s Works, v.41, p.154)
Picture: Baptismal font stained glass