Ezra

And the Lord said unto Moses, Wherefore criest thou unto me? speak unto the children of Israel, that they go forward:

And I contended with them, and cursed them, and smote certain of them, and plucked off their hair, and made them swear by God, saying, Ye shall not give your daughters unto their sons, nor take their daughters unto your sons, or for yourselves.

Then said they, We will restore them, and will require nothing of them; so will we do as thou sayest. Then I called the priests, and took an oath of them, that they should do according to this promise.

So Moses hearkened to the voice of his father in law, and did all that he had said.

Give instruction to a wise man, and he will be yet wiser: teach a just man, and he will increase in learning.