I have a 1999 jeep grand cherokee

I got in my jeep today to leave from school. I got in put the key in the ignition went to turn it over to start it, and it won't turn at all. It will not even let me put the jeep in nutral. I also thought I would check and see if the key would unlock my doors and it wouldn't unlock my doors either. I do have a keyless entry, that is the only way I got in my jeep. I read the manual and thought maybe my wheel was locked but I tried to unlock it and its not doing anything.