Parallel
Mark 6:52
Patriarchal Greek New Testament (1904) · Berean Standard Bible
οὐ γὰρ συνῆκαν ἐπὶ τοῖς ἄρτοις, ἀλλ᾽ ἦν αὐτῶν ἡ καρδία πεπωρωμένη.
for they had not understood about the loaves, but their hearts had been hardened.