99 The words “these things” are not present in the Greek text but are implied. Direct objects in Greek were often omitted when clear from the context, and must be supplied for the English reader.
100 Or “hard,” “demanding.”
101 Or “teaching”; Grk “word.”
102 Or “obey it”; Grk “hear it.” The Greek word ἀκούω (akouō) could imply hearing with obedience here, in the sense of “obey.” It could also point to the acceptance of what Jesus had just said, (i.e., “who can accept what he said?” However, since the context contains several replies by those in the crowd of hearers that suggest uncertainty or confusion over the meaning of what Jesus had said (6:42; 6:52), the meaning “understand” is preferred here.

In other versions

When many of his disciples heard it, they said, “This is a hard saying; who can listen to it?”

On hearing it, many of his disciples said, “This is a hard teaching. Who can accept it?”

Therefore, when many of his disciples heard this, they said, “This teaching is hard. Who can accept it?”

Many of his disciples said, “This is very hard to understand. How can anyone accept it?”

Thus many of his disciples, when they heard it, said, “This saying is hard! Who can understand it?”

Many therefore of his disciples, when they had heard this, said, This is an hard saying; who can hear it?

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