Dreams are symbolic expressions of our feelings about our waking life at the time of the dream. It'd be helpful to know the waking life background that generated your dream, but I will give it a shot. First, here are links to the definitions of the symbols in your dream:
end of the world:
dreamdoctor.com/component/dreams/?contro...&task=details&id=705
car:
dreamdoctor.com/component/dreams/?contro...&task=details&id=364
alligator:
dreamdoctor.com/component/dreams/?contro...y&task=details&id=51
God (variation of Jesus):
dreamdoctor.com/component/dreams/?contro...&task=details&id=909
Again, without knowing what was going on in your waking life at the time of the dream, it's hard to be specific about the meaning, but here goes...
Some aspect of your life had come to an end. This could be as a result of a death or the end of a relationship. You are packing things up in your car, which could be a metaphor for packing up some thoughts or feelings you have about that event. As you thought the alligator was female in the dream, try to figure out who in your waking life who is aggressive and potentially hurtful in your waking life, who may lurk "in muddy water" and might attack without warning. This might even have been a romantic interest. The next part of your dream suggests a reckoning with some spiritual concerns, perhaps generated by the event that caused "the end of the world." The fact that you bonded with Jesus reflects a sense of peace you have with whatever transformative event you experienced.
Please share what was going on in your waking life at the time of your dream so I, and others, can better help you understand the symbolism and connect the dots.
In the meantime, I hope that this has helped.