When they are invited to GOD and His messenger to judge among them, some of them get upset. In fact, it is they who are unjust. These are the winners. Those who obey GOD and His messenger, and reverence GOD and observe Him, these are the triumphant ones. They swear by GOD, solemnly, that if you commanded them to mobilize, they would mobilize.
Obedience is an obligation.
If they refuse, then he is responsible for his obligations, and you are responsible for your obligations. If you obey him, you will be guided. GOD promises those among you who believe and lead a righteous life, that He will make them sovereigns on earth, as He did for those before them, and will establish for them the religion He has chosen for them, and will substitute peace and security for them in place of fear. Those who disbelieve after this are the truly wicked. This is to be done in three instances - before the Dawn Prayer, at noon when you change your clothes to rest, and after the Night Prayer.