Mark 6:52 in the World English Bible
for they hadn’t understood about the loaves, but their hearts were hardened.
Context
51 And he went up unto them into the ship; and the wind ceased: and they were sore amazed in themselves beyond measure, and wondered.
52 For they considered not the miracle of the loaves: for their heart was hardened.
53 And when they had passed over, they came into the land of Gennesaret, and drew to the shore.