The Naming Of John

Et dixerunt ad illam: Quia nemo est in cognatione tua qui vocetur hoc homine. Innuebant autem patri ejus etc. Joannes est nomen est... Hoc est non ei nos nomen imponimus qui jam a Deo nomen accepti. Habet vocabulum suum quod agnovimus, non quod elegimus. Nec mireris si nomen mulier, quod non audivit asseruit, quando ei Spiritus sanctus qui angelo mandaverat revelavit, neque poterat Domini ignorare praenuntium, quae prophetaverat Christum. Et bene additur quia nemo in cognatione ejus vocatur hoc nomine, ut intelligas nomen non generis esse, sed vatis. Sanctus Beda,In Lucae Evangelium Expositio, Liber I, Caput I Source: Migne PL 92.324b

And they said to her: 'No one in your family is called by this name.' And they made signs to his father ... 'John is his name ...' 1 That is, we do not give a name to him who already has received his name from God. He has his title which we know, not that which we have chosen. Nor wonder if the woman asserts this because she did not hear it, when to her the Holy Spirit revealed what He commanded the angel, she was not able to be ignorant of the foretelling of the Lord, who made prophecy of Christ. 2 And well it is added that no one in his family was called by this name, that you understand the name was not of a family but of a prophet. Saint Bede, Commentary On The Gospel of Saint Luke, Book 1 1 Lk 1.61-63 2 Lk 1.41-45