The Catechism in Questions & Answers

418. What do we mean when we talk about “ministrations” in the church of Jesus Christ?

Every baptised believer is called upon to serve the Lord in active love for his neighbour and by professing his faith (cf. John 12: 26).
When specific mandates and areas of activity that serve for the benefit of the believers and the proclamation of the gospel are assigned to individual believers in the church of Jesus Christ, we understand these as “ministrations”. Such ministrations are discharged wherever baptised individuals profess their belief in Jesus Christ as their Lord in word and deed.