Hebrews 5:13

13Anyone who lives on milk, being still an infant, is not acquainted with the teaching about righteousness.

13For everyone who partakes only of milk is unacquainted with the word of righteousness, for he is an infant.

13For everyone who partakes only of milk is not accustomed to the word of righteousness, for he is an infant.

13For everyone who lives on milk is [doctrinally inexperienced and] unskilled in the word of righteousness, since he is a spiritual infant.

13For everyone who lives on milk is still an infant, inexperienced in the message of righteousness.

13Anyone who lives on milk is still a baby. That person does not want to learn about living a godly life.