5:11 About this we have much to say, and it is hard to explain, since you have become dull of hearing.
12 For though by this time you ought to be teachers, you need someone to teach you again the basic principles of the oracles of God. You need milk, not solid food,
13 for everyone who lives on milk is unskilled in the word of righteousness, since he is a child.
14 But solid food is for the mature, for those who have their powers of discernment trained by constant practice to distinguish good from evil. (ESV)
The writer wants to discuss at greater lengths about Jesus functioning as our high priest after the order of Melchizedek. However, he says that while there is much to say about this, there is a problem. The audience is going to have a difficult time understanding, not because the subject matter is too hard, but because they are dull of hearing. The word â€œdullâ€ carries with it the idea of being â€œslowâ€ and â€œslothful.â€ The problem the author is pointing out to his audience is that they have become spiritually lazy. The author says that they could dig into deeper things, but the readers have not prepared themselves to go deeper. They are shallow Christians.
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