King James Version
But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.English Standard Version
But solid food is for the mature, for those who have their powers of discernment trained by constant practice to distinguish good from evil.Catholic Public Domain Version
But solid food is for those who are mature, for those who, by practice, have sharpened their mind, so as to discern good from evil