Hebrews 5:12-14

LITV(i) 12 For indeed because of the time you are due to be teachers, yet you need to have someone to teach you again the rudiments of the beginning of the oracles of God, and you have become in need of milk, and not of solid food; 13 for everyone partaking of milk is without experience in the word of righteousness, for he is an infant. 14 But solid food is for those full grown, having exercised the faculties through habit, for distinction of both good and bad.