'Teaching' in the Bible

For though by this time you ought to be teachers [because of the time you have had to learn these truths], you actually need someone to teach you again the elementary principles of God’s word [from the beginning], and you have come to be continually in need of milk, not solid food.

By people who live on milk I mean those who are imperfectly acquainted with the teaching concerning righteousness.

Therefore leaving the elementary teaching about the Christ, let us press on to maturity, not laying again a foundation of repentance from dead works and of faith toward God,

teaching about ritual washings, laying on of hands, the resurrection of the dead, and eternal judgment.

And we will do this [that is, proceed to maturity], if God permits.

And there will be no need for every man to be teaching his brother, or his neighbour, saying, This is the knowledge of the Lord: for they will all have knowledge of me, great and small.

Do not be drawn aside by all sorts of strange teaching; for it is well to have the heart made stedfast through God's grace, and not by special kinds of food, from which those who scrupulously attend to them have derived no benefit.