Thematic Bible: Those that are full of age

Concerning whom we have much to say, and hard to be interpreted in speaking of it, since ye are become dull in hearing. For when for the time ye ought to be teachers, ye have again need that one should teach you what are the elements of the beginning of the oracles of God, and are become such as have need of milk, and not of solid food. For every one that partakes of milk is unskilled in the word of righteousness, for he is a babe; read more.
but solid food belongs to full-grown men, who, on account of habit, have their senses exercised for distinguishing both good and evil.