'Commandment' in the Bible

The words of Jonadab the son of Rechab, that he commanded his sons not to drink wine, are performed; and to this day they have drunk none, for they have obeyed their father's commandment. But I have spoken unto you, rising early and speaking, and ye have not hearkened unto me.

Yea, the sons of Jonadab the son of Rechab have performed the commandment of their father which he commanded them, but this people hath not hearkened unto me;

And Jeremiah said unto the house of the Rechabites, Thus saith Jehovah of hosts, the God of Israel: Because ye have obeyed the commandment of Jonadab your father, and kept all his injunctions, and have done according unto all that he hath commanded you;