At this, the Jews began to grumble about Jesus because He had said, “I am the bread that came down from heaven.”
41. The Jews therefore murmured concerning him. The Evangelist explains the cause of the murmuring to have been, that the Jews were offended at the mean condition of Christ’s human nature, “De la petitesse de Christ, et de sa humaine condition;” — “at the meanness of Christ, and of his human condition.” and did not perceive in him any thing Divine or heavenly.
Whether this conference was with the Capernaites, in whose synagogue Christ now was, or with those who came from the other side of the sea, is not certain nor material; however, it is an instance of Christ's condescension that he gave them leave to ask him questions, and did not resent the interruption as an affront, no, not from his common hearers, though not his immediate followers.
Commenting on John 6:28-59
And they said, is not this Jesus the son of Joseph?.... From murmuring they go to mocking and scoffing at his parentage and descent, and object this to his coming down from heaven; and intend by it to upbraid him with the meanness of his birth, being the son of Joseph, a poor carpenter; and suggest, that it was great arrogance in him to claim...