What is the meaning of Matthew 13:15?

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

For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’

Berean Standard Bible (BSB)

for this people’s heart has grown callous, their ears are dull of hearing, they have closed their eyes; or else perhaps they might perceive with their eyes, hear with their ears, understand with their heart, and should turn again; and I would heal them.’

World English Bible (WEB)

For{G1063} this{G5127} people's{G2992} heart{G2588} is waxed gross{G3975}{(G5681)}, and{G2532} their ears{G3775} are dull{G917} of hearing{G191}{(G5656)}, and{G2532} their{G846} eyes{G3788} they have closed{G2576}{(G5656)}; lest at any time{G3379} they should see{G1492}{(G5632)} with their eyes{G3788}, and{G2532} hear{G191}{(G5661)} with their ears{G3775}, and{G2532} should understand{G4920}{(G5632)} with their heart{G2588}, and{G2532} should be converted{G1994}{(G5661)}, and{G2532} I should heal{G2390}{(G5667)} them{G846}.

Strong's King James

BECAUSE THE HEART OF THIS PEOPLE IS MADE DULL, THEIR EARS ARE HARD OF HEARING, THEY HAVE CLOSED THEIR EYES. OTHERWISE THEY MIGHT SEE WITH THEIR EYES, AND MIGHT HEAR WITH THEIR EARS, AND UNDERSTAND WITH THEIR HEART AND RETURN, AND I WOULD HEAL THEM.'

The F.O.G*

[15] For these people's hearts have grown callous, their ears barely hear, and they've closed their eyes. Otherwise, they might see with their eyes, hear with their ears, understand with their hearts, and turn to Me for healing.'

The F.O.G Paraphrase

for made gross was the heart of this people, and with the ears they heard heavily, and their eyes they did close, lest they might see with the eyes, and with the ears might hear, and with the heart understand, and turn back, and I might heal them.

Young's Literal Translation