To take possession of it - The goods of traitors appear to have been forfeited to the crown by the Jewish law as they still are almost universally throughout the East. Compare 2 Samuel 16:4.
Matthew Henry
Concise Bible Commentary
When, instead of a help meet, a man has an agent for Satan, in the form of an artful, unprincipled, yet beloved wife, fatal effects may be expected. Never were more wicked orders given by any prince, than those Jezebel sent to the rulers of Jezreel. Naboth must be murdered under colour of religion. There is no wickedness so vile, so horrid, but religion has sometimes been made a cover for it. Also, it must be done under colour of justice, and with the formalities of legal process. Let us, from this sad story, be amazed at the wickedness of the wicked, and the power of Satan in the children of disobedience. Let us commit the keeping of our lives and comforts to God, for innocence will not always be our security; and let us rejoice in the knowledge that all will be set to rights in the great day.