12 For though by this time you ought to be teachers, you need some one to teach you again the first principles of God's word. You need milk, not solid food; 13 for every one who lives on milk is unskilled in the word of righteousness, for he is a child. 14 But solid food is for the mature, for those who have their faculties trained by practice to distinguish good from evil.
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.