Hebrews 5:12-14

Noyes(i) 12 For while on account of the length of time ye ought to be teachers, ye again have need that some one should teach you the first elements of the oracles of God, and are become such as have need of milk, and not of solid food. 13 For every one that feedeth on milk is unacquainted with the word of righteousness; for he is a babe; 14 but solid food belongs to those who are of full age, who by use have their senses exercised to discern both good and evil.