Hebrews 5:12-14 For even by the time you ought to be teachers, you have need of one to teach you again what is the beginning of the principles of the oracles of God; and you have become those having need of milk, and not of solid food.

BLB⁽ⁱ⁾ ¹² For even by the time you ought to be teachers, you have need of one to teach you again what is the beginning of the principles of the oracles of God; and you have become those having need of milk, and not of solid food. ¹³ For everyone partaking of milk is unskilled in the word of righteousness, for he is an infant. ¹⁴ But solid food is for the mature, the ones by constant use having trained the senses for distinguishing both good and evil.