Hebrews 5:12
For when for the time ye ought to be teachers, ye have need of one to teach you again which are the first principles of the oracles of God; and are become such as have need of milk, and not of strong food.For when for the time ye ought to be teachers, ye have need of one to teach you again which are the first principles of the oracles of God; and are become such as have need of milk, and not of strong food.