1. the argument which states: anything which is an effect must have a cause.

2. the argument which states: anything that exists has a beginning.

The cosmological argument is the notion that God created the universe and that there is always a cause and an effect. The three main parts to the cosmological argument is the uncaused cause, unmoved mover and possibility and necessity/possibility and contingency. There are 5 ways in Aquinas's version of the cosmological argument, however I'm only discussing the 3 that I stated as they are the main parts of the argument as urban dictionary only let's me type a limited quantity of characters.

Uncaused cause (4 premises and a conclusion)
• Everything has a cause
•Every cause has a cause
• This cannot go back forever
•Therefore there must be an uncaused cause which doesn't have a cause.
•The uncaused cause is what we understand as God

Unmoved mover (2 premises and a conclusion)

•Everything that has been moved by something and that mover has been moved by something else.

•This chain cannot go back forever or movement would not have started in the first place.

•Therefore there must be an unmoved mover which isn't itself moved. This unmoved mover must be God

Possibility and necessity/possibility and contingency:

This one is simple. A contingent being is a being which needs a cause and a necessary being is the opposite meaning a being doesn't need a cause. It is believed that God is the necessary being who created the world.