John 6:60

6:60 Then many of his disciples, when they heard these things, said, “This is a difficult saying! Who can understand it?”

Isaiah 6:9

6:9 He said, “Go and tell these people:

‘Listen continually, but don’t understand!

Look continually, but don’t perceive!’

Jeremiah 6:10

6:10 I answered,

“Who would listen

if I spoke to them and warned them?

Their ears are so closed

that they cannot hear!

Indeed, what the Lord says is offensive to them.

They do not like it at all.

Acts 7:51

7:51 “You stubborn people, with uncircumcised hearts and ears! You are always resisting the Holy Spirit, like your ancestors did!

Romans 8:7-8

8:7 because the outlook of the flesh is hostile to God, for it does not submit to the law of God, nor is it able to do so. 8:8 Those who are in the flesh cannot please God.