What is the meaning of John 6:42?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

They were asking, “Is this not Jesus, the son of Joseph, whose father and mother we know? How then can He say, ‘I have come down from heaven?’”

Berean Standard Bible (BSB)

They said, “Isn’t this Jesus, the son of Joseph, whose father and mother we know? How then does he say, ‘I have come down out of heaven?’”

World English Bible (WEB)

And{G2532} they said{G3004}{(G5707)}, Is{G2076}{(G5748)} not{G3756} this{G3778} Jesus{G2424}, the son{G5207} of Joseph{G2501}, whose{G3739} father{G3962} and{G2532} mother{G3384} we{G2249} know{G1492}{(G5758)}? how is it{G4459} then{G3767} that he{G3778} saith{G3004}{(G5719)},{G3754} I came down{G2597}{(G5758)} from{G1537} heaven{G3772}?

Strong's King James

(42) They said, "Isn't this Yeshua, Joseph's son whose father and mother we know? How He now says that, 'I have come down from the sky?'"

The F.O.G*

[42] They grumbled, "Isn't this Jesus, Joseph's son? We know His father and mother. How can He now say, 'I came down from heaven'?"

The F.O.G Paraphrase

and they said, ‘Is not this Jesus, the son of Joseph, whose father and mother we have known? how then saith this one—Out of the heaven I have come down?’

Young's Literal Translation