Mark 4:12; Mark 6:52; Mark 7:14; Mark 8:17; Mark 8:21

Mark 4:12

12 so that, “ ‘they may be ever seeing but never perceiving, and ever hearing but never understanding; otherwise they might turn and be forgiven!’”

Mark 6:52

52 for they had not understood about the loaves; their hearts were hardened.

Mark 7:14

14 Again Jesus called the crowd to him and said, “Listen to me, everyone, and understand this.

Mark 8:17

17 Aware of their discussion, Jesus asked them: “Why are you talking about having no bread? Do you still not see or understand? Are your hearts hardened?

Mark 8:21

21 He said to them, “Do you still not understand?”