For concluding our brief subject, it remains to put you in mind also of the due observance of giving and receiving baptism. Of giving it, the chief priest (who is the bishop) has the right: in the next place, the presbyters and deacons, yet not without the bishop’s authority, on account of the honour of the Church, which being preserved, peace is preserved. Beside these, even laymen have the right; for what is equally received can be equally given. Unless bishops, or priests, or deacons, be on the spot, other disciples are called i.e. to the work. The word of the Lord ought not to be hidden by any: in like manner, too, baptism, which is equally God’s property, can be administered by all. But how much more is the rule of reverence and modesty incumbent on laymen—seeing that these powers belong to their superiors—lest they assume to themselves the specific function of the bishop! Emulation of the episcopal office is the mother of schisms.
Tertullian
On Baptism
Chapter XVII