Mark 3:24-25

3:24 If a kingdom is divided against itself, that kingdom will not be able to stand. 3:25 If a house is divided against itself, that house will not be able to stand.

Mark 6:52

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

Mark 9:6

9:6 (For they were afraid, and he did not know what to say.)

Mark 13:31

13:31 Heaven and earth will pass away, but my words will never pass away.