John the Apostle
John 6:60ESV·traditional attribution

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

John Calvin Reformed @genevareformer

60. This is a harsh saying. On the contrary, it was in their hearts, and not in the saying, that the harshness lay. But out of the word of God the reprobate are thus accustomed to form stones to dash themselves upon, and when, by their hardened obstinacy, they rush against Christ, they complain that his saying is harsh, which ought rather to have softened them.

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of the effects of Christ's discourse. Some were offended and others edified by it; some driven from him and others brought nearer to him. I. To some it was a savour of death unto death; not only to the Jews, who were professed enemies to him and his doctrine, but even to many of his disciples, such as were disciples...

Commenting on John 6:60-71

John Gill Reformed Baptist @doctorgill

What and if ye shall see the son of man,.... Meaning himself then in a state of humiliation, and was taken for a mere man, though the true Messiah, and Son of God: ascend up where he was before? for Christ was, he existed before his incarnation, and he was in heaven before; not in his human nature, but as the word and Son of...