And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who are you?
All Commentaries on John 1:19 Go To John 1
Theophilus of Antioch
AD 184
Or, after the introduction above of John’s testimony to Christ, is preferred before me, the Evangelist now adds when the above testimony was given, And this is the record of John, when the Jews sent priests and Levites from Jerusalem.
Or because he declared the truth plainly, while all who were under the law spoke obscurely.