'Doctrine' in the Bible

My doctrine shall drop as the rain, my speech shall distil as the dew, as the small rain upon the tender herb, and as the showers upon the grass:

For thou hast said, My doctrine is pure, and I am clean in thine eyes.

For I give you good doctrine, forsake ye not my law.

Whom shall he teach knowledge? and whom shall he make to understand doctrine? them that are weaned from the milk, and drawn from the breasts.

They also that erred in spirit shall come to understanding, and they that murmured shall learn doctrine.

But they are altogether brutish and foolish: the stock is a doctrine of vanities.