If God did not have man's law, then God would not be able to give an order that is worth following.  If God didn't keep His promises and hold people accountable for their sins, like He does now, then He would not be God anymore.  God has been always just.

If God created the ideal world, then God is responsible for the working parts and how they fit together and function properly.  God is responsible for all people, including you. He is in charge of the people who make up the governments in all the countries.  God is in charge of everything and is the owner of the moral law.  

 If God was not able to make sure that everything would turn out the way He wanted before He started the project, then God might be doing something wrong.  He would not have made them in order to keep His law.  God could not produce a necessary thing without knowing the end of that thing. If something is self-determined, it may not be reasonable for God to produce that thing.  God had to deal with things in a way that was perfect and fair, just like He always does.

If God naturally produced the ideal world, then He is responsible for the working parts and how they fit together and function properly. If God is sovereign, then he is responsible for all intelligent men. He is responsible for all established governments. But if God governs all necessary things, then His moral law must be carefully applied to all things. If His law did not govern the judicial function of all things, then God would immediately cease to be justified. If God ceased to reasonably hold all things accountable to His law, then He would simply represent God in a forgotten name. God had been fully justified at all times. If God had not assured the desired outcome of all necessary things before reliably producing them, then God may be unjustified in knowingly causing them for His divine glory. He would not have produced them to faithfully meet the specific requirements of His law before producing them. Therefore, God could not produce a necessary thing without precisely determining the end of that thing.If something was self-determined, then God might be unjustified in producing that thing. God had to deal adequately with all that was necessary according to His eternal justice. Therefore, God must be reasonably connected to the ongoing creation, proving himself to be mystical with appropriate rewards and punishments. If any responsible person can easily accept divine justice in the word of God, he must defend himself by always doing justice to everything. This is why God lowers his divine justice by knowing moral laws and independent judgment. A man can never justify himself to act in accordance with the moral law, or to have sufficient justification when his actions are legally challenged.  In a world full of sin and injustice, do the civil rights of a reasonable person get violated more often because of the sin of terrible injustice? The key question is whether the civil rights of a reasonable person are intentionally violated in this pagan world because of the sin of terrible injustice, does God disproportionately not respond to such violation? God, who is in charge of everything, will make sure that what happened was for a good reason. Did God naturally give man the power to do good things to people? This is why God pronounced the curses in the Bible, which are eternal. He could extend the reasons why he thinks it was just to do bad things in the past, even when it wasn't.