Now Herod the tetrarch heard of all that was done by him: and he was perplexed, because it was said by some, that John was risen from the dead;
All Commentaries on Luke 9:7 Go To Luke 9
John Chrysostom
AD 407
For sinners fear both when they know, and when they are ignorant; they are afraid of shadows, are suspicious about everything, and are alarmed at the slightest noise. Such in truth is sin; when no one blames or finds fault, it betrays a man, when no one accuses it condemns, and makes the offender timid and backward. But the cause of fear is stated afterwards, in the words, Because that it was said of some.
When Herod then heard of the miracles which Jesus was performing, he says, John have I beheaded, which was not an expression of boasting, but by way of allaying his fears, and bringing his distracted soul to recollect that he had killed. And because he had beheaded John, he adds, but who is this.