Mark 6:52

6:52 because they did not understand about the loaves, but their hearts were hardened.

Mark 7:14

7:14 Then 1  he called the crowd again and said to them, “Listen to me, everyone, and understand.

Mark 9:32

9:32 But they did not understand this statement and were afraid to ask him.

1 tn Grk “And.” Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the narrative.