Hebrews 5:11–14

Of whom we have much to say and hard to be intelligibly uttered: because you are become weak to hear. 12For whereas for the time you ought to be masters, you have need to be taught again what are the first elements of the words of God: and you are become such as have need of milk and not of strong meat. 13For every one that is a partaker of milk is unskilful in the word of justice: for he is a little child. 14But strong meat is for the perfect: for them who by custom have their senses exercised to the discerning of good and evil.