Berean Standard Bible (BSB)
for they had not understood about the loaves, but their hearts had been hardened.
World English Bible (WEB)
for they hadn’t understood about the loaves, but their hearts were hardened.
Strong's King James
For{G1063} they considered{G4920}{(G5656)} not{G3756} the miracle of{G1909} the loaves{G740}: for{G1063} their{G846} heart{G2588} was{G2258}{(G5713)} hardened{G4456}{(G5772)}.
The F.O.G *
(52) For they had not understood to meditate upon the bread loaves, so rather their heart was hardened dull.
The F.O.G Message *
Young's Literal Translation
for they understood not concerning the loaves, for their heart hath been hard.