English Standard Version
for everyone who lives on milk is unskilled in the word of righteousness, since he is a child.

American Standard Version
For every one that partaketh of milk is without experience of the word of righteousness; for he is a babe.

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

Douay-Rheims Bible
For every one that is a partaker of milk, is unskillful in the word of justice: for he is a little child.

English Revised Version
For every one that partaketh of milk is without experience of the word of righteousness; for he is a babe.

King James Bible
For every one that useth milk is unskilful in the word of righteousness: for he is a babe.

World English Bible
For everyone who lives on milk is not experienced in the word of righteousness, for he is a baby.

Young's Literal Translation
for every one who is partaking of milk is unskilled in the word of righteousness -- for he is an infant,

Hebrews 5:13 Additional Translations ...