For the rest of this thread, without saying anything to the contrary, I’ll be playing devil’s advocate.
Sounds like a good plan. Game.
Matter doesn’t need a cause. It’s always existed. The universe is in a state of perpetual, cyclical expansion and contraction. There is no beginning. There is no end. There only is.
If the universe is changing or moving, then it needs a cause. And if it is changing perpetually, then it needs a perpetual cause. The fact that it is changing perpetually does not remove the need for a cause of change.
But why must any object that changes require a cause? Because change is a transition from one state (State1) to a different state (State 2). Now, State 2 has to be different from State 1, otherwise there would be no change. This means that the object in State 2 must have characteristics and qualities not present in State 1. If there was no cause of change, what would explain the origin of the new characteristics present in State 2 but were absent in State 1? This is the reason why, if matter and the entire universe are changing, they both need a cause of change.
OK, but how does the argument above prove that matter needs a Creator or Cause of its
being or a cause of its
existence? The reason is because if anything is capable of change, then it is capable of losing its characteristics in its present state (State 1). One of those characteristics is existence. Anything that is capable of change is also capable of losing its existence. So, for matter or the universe to remain in a state of existence, it needs a Cause to sustain it in existence.
Then how did it start to exist? Why is it existing in the first place? Good question. Since it is capable of losing existence, it means that it is not a “necessary" being. In other words, it is not a being that cannot but exist. So, if it exists, then the reason for its existence cannot be found in itself, but in something other than itself, which is its Cause. Therefore, matter – and the Universe at large – needs a Cause of being.
The above arguments do not prove that the whole world had a beginning in time. It is possible that matter always existed, if it was created from eternity and sustained from eternity by its Creator/Cause. Imagine an enclosed room that has a lamp in it. The room is bright because the switch is on. The room could have been bright forever, if the switch has always been on forever. The existence of the world is like the illumination in the room, and the switch and the lamp represent God’s creative and conserving power. If God were to remove His conserving Power (switch off), the entire world will be annihilated or cease to be.