There are a number of terms which Tertullian employs to denote either appointment or election to church office or promotion from lesser to higher office. We will now look at these and consider what they might tell us about Tertullian's understanding of Christian office.
‘Adlectio’ and ‘adlegere’
In Roman law ‘adlectio’ originally denoted the election of a person to the Senate, and later the bestowal of citizen rights on entire communities. Tertullian uses it seven times in settings both pagan and Judaeo-Christian. At Adv.Marcionem 11,24,2 he employs it of the ‘election’ of Saul as king by God, at 11,25,4 of the ‘election’ of man into divinity (i.e. of the Incarnation), at 111,21,3 of the ‘election ’of the ‘nations’, at 111,21,4 of the ‘election’ of the ‘elders’ of the Jews, and at v, 17,10 of the ‘election’ of the Fathers of the Jews. At De Baptismo 12,8 Tertullian employs ‘adlectio’ to denote Christ's ‘choosing’ of the first disciples. The verb ‘adlegere’ is also used extensively by Tertullian with a variety of meanings. He employs it normally, however, to denote a divine choosing, such as that of Saul at Adv. Marcionem 11,24,2, of Peter by Christ at IV, 11,1, of the other apostles and the Seventy by Christ at IV,24,1, of the ‘nations’ by God at De Resurrectione 22,4, and, finally, of the animals in the Ark by Noah at De Monogamia 4,5.
The employment of ‘adlectio’ or ‘adlegere’ in an ecclesiastical setting appears to be confined by Tertullian to admission to the ‘official’ classes of bishops, presbyters, deacons and widows. They were not used for the ‘minor’ grades of ‘virgin’, ‘lector’ and ‘doctor’, nor for recognition as a ‘prophet’.