Mark 4:12

4:12 so that although they look they may look but not see,

and although they hear they may hear but not understand,

so they may not repent and be forgiven.”

Mark 10:15

10:15 I tell you the truth, whoever does not receive the kingdom of God like a child will never enter it.”

Mark 13:2

13:2 Jesus said to him, “Do you see these great buildings? Not one stone will be left on another. All will be torn down!”