I think you understand completely or you wouldn’t have posted what you did, but maybe this will clear it up for you it’s the clearest I can make it.
Hebrews 5:11-14 New International Version (NIV)
11 We have much to say about this, but it is hard to make it clear to you because you no longer try to understand. 12 In fact, though by this time you ought to be teachers, you need someone to teach you the elementary truths of Gods word all over again. You need milk, not solid food! 13 Anyone who lives on milk, being still an infant, is not acquainted with the teaching about righteousness. 14 But solid food is for the mature, who by constant use have trained themselves to distinguish good from evil.
Matthew 13:15 New International Version (NIV)
15 For this peoples heart has become calloused;
they hardly hear with their ears,
and they have closed their eyes.
Otherwise they might see with their eyes,
hear with their ears,
understand with their hearts
and turn, and I would heal them.
Thanks for that advice.
I’ll have a glass of milk tomorrow.