79 Grk “Then the Jews began to argue.” Here the translation restricts the phrase to those Jews who were hostile to Jesus (cf. Ἰουδαῖος 2.e.β), since the “crowd” mentioned in 6:22–24 was almost all Jewish (as suggested by their addressing Jesus as “Rabbi” (6:25). See also the note on the phrase “the Jews who were hostile to Jesus” in v. .
80 Grk “with one another, saying.”
81 Grk “this one,” “this person.”

In other versions

The Jews then disputed among themselves, saying, “How can this man give us his flesh to eat?”

Then the Jews began to argue sharply among themselves, “How can this man give us his flesh to eat?”

At that, the Jews argued among themselves, “How can this man give us his flesh to eat?”

Then the people began arguing with each other about what he meant. “How can this man give us his flesh to eat?” they asked.

So the Jews began to quarrel among themselves, saying, “How can this man give us his flesh to eat?”

The Jews therefore strove among themselves, saying, How can this man give us his flesh to eat?

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