Matthew 17:13 in the King James Version
Then the disciples understood that he spake unto them of John the Baptist.
Context
12 but I tell you that Elijah has come already, and they didn’t recognize him, but did to him whatever they wanted to. Even so the Son of Man will also suffer by them.”
13 Then the disciples understood that he spoke to them of John the Baptizer.
14 When they came to the multitude, a man came to him, kneeling down to him and saying,