12 You have been believers so long now that you ought to be teaching others. Instead, you need someone to teach you again the basic things about God's word. You are like babies who need milk and cannot eat solid food. 13 For someone who lives on milk is still an infant and doesn't know how to do what is right. 14 Solid food is for those who are mature, who through training have the skill to recognize the difference between right and wrong.
Matthew Henry's Commentary on Hebrews 5:12-14
Commentary on Hebrews 5:11-14
(Read Hebrews 5:11-14)
Dull hearers make the preaching of the gospel difficult, and even those who have some faith may be dull hearers, and slow to believe. Much is looked for from those to whom much is given. To be unskilful, denotes want of experience in the things of the gospel. Christian experience is a spiritual sense, taste, or relish of the goodness, sweetness, and excellence of the truths of the gospel. And no tongue can express the satisfaction which the soul receives, from a sense of Divine goodness, grace, and love to it in Christ.