English Standard Version
Then the disciples understood that he was speaking to them of John the Baptist.

American Standard Version
Then understood the disciples that he spake unto them of John the Baptist.

Berean Study Bible
Then the disciples understood that He was speaking to them about John the Baptist.

Douay-Rheims Bible
Then the disciples understood, that he had spoken to them of John the Baptist.

English Revised Version
Then understood the disciples that he spake unto them of John the Baptist.

King James Bible
Then the disciples understood that he spake unto them of John the Baptist.

World English Bible
Then the disciples understood that he spoke to them of John the Baptizer.

Young's Literal Translation
Then understood the disciples that concerning John the Baptist he spake to them.

Matthew 17:13 Additional Translations ...