John 8:27

They did not understand that he was speaking to them of the Father.

John 8:43

Why is it that you do not understand what I say? It is because you cannot bear to listen to my message.

John 8:47

Whoever is sprung from God listens to God's words. The reason you refuse to listen is that you are not sprung from God."

Romans 11:7-10

What follows? Israel failed to get what it sought, but those whom God selected got it.

2 Corinthians 4:3-4

If the meaning of my preaching of the good news is veiled at all, it is so only in the case of those who are on the way to destruction.

Treasury of Scripture Knowledge

Summary

They understood not that he spake to them of the Father.

Bible References

General references

John 8:43
Why is it that you do not understand what I say? It is because you cannot bear to listen to my message.
Romans 11:7
What follows? Israel failed to get what it sought, but those whom God selected got it.
2 Corinthians 4:3
If the meaning of my preaching of the good news is veiled at all, it is so only in the case of those who are on the way to destruction.