Hebrews 5:13

13Everyoneπᾶςforγὰρὁpartaking [only]μετέχωνof milkγάλακτος[is] inexperiencedἄπειροςin [the] wordλόγουof righteousnessδικαιοσύνης,an infantνήπιοςforγάρhe isἐστιν·

For everyone partaking of milk [is] inexperienced in the word of righteousness, for he is an infant.