Cosmological argument
The cosmological argument is an argument that everything in existence must have a cause except for one first cause (which is what we call God).
Versions of the argument
Kalam cosmological arguement
Premise 1: Whatever begins to exist has a cause.
Premise 2: The universe began to exist.
Premise 3: Therefore, the universe has a cause.
Conclusion: Therefore, God is the cause of the universe.
Leibnizian cosmological argument
Premise 1: Anything that exists has an explanation of its existence, either in the necessity of its own nature or in an external explanation.
Premise 2: The universe has an explanation for its existence, and that explanation is grounded in a necessary being.
Premise 3: The universe exists.
Premise 4: Therefore, the universe has an explanation of its existence (from 1, 3).
Premise 5: Therefore, the explanation of the existence of the universe is grounded in a necessary being (from 2, 4).
Conclusion: Therefore, God (a necessary being) exists.
Objections To Cosmological arguement and Rebuttals
Who created God?
Fails to realize that uncaused-causer isn't an opinion, it's a necessity, also God exists outside space and time.