This is an overall principle: "Do not rebel! Do not associate with revolutionaries. Have respect for God. Have respect for the authority that He has constituted to rule over the land—the king!" The warning can be taken two ways. One, when one rebels, the ruler and the rebel are ruined: "who knows the ruin those two can bring?" Two, the rebel may be ruined by the both of them. God wants us to realize that there is no real liberty in rebellion.
