Commentators regularly note the alleged tension in John 15 between ‘friendship’ and ‘obedience’. This article employs numismatic inscriptional evidence to explore the ΦΙΛ- lexeme and more carefully denote the semantic domains of relevant terminology. This analysis confirms that no such tension exists within the socio-political context in which the Gospel was written. The inclusion of specific political terminology on Roman coins (for example, ΦΙΛΙΑ; ΦΙΛΟΚΑΙΣΑΡ; ΦΙΛΟΚΛΑΥΔΙΟΣ; ΦΙΛΟΡΩΜΑΙΟΣ; ΦΙΛΟΣΕΒΑΣΤΩΝ) was one way in which elite concepts of political friendship, evidenced in Cicero and Seneca, were communicated to the masses. In light of the numismatic evidence, the ΦΙΛ- lexeme can refer not only to the emotional bond of friendship, but also the dimension of obligation.