To Unsure
Everything that begins to exist has a cause. We know that the universe had a beginning. Was the cause a what or a who?
Why should the First Cause be a person?
It is the only way to explain how a timeless cause can produce a temporal effect with a beginning like the universe.
Here is the problem. If the cause was non cognitive and sufficient to produce the effect then if the cause is there the affect must be there also.
Now the cause of the universe is permanently there, since it is timeless. So why isn't the universe permanently there as well, why did the universe come into being only billions years ago, why isn't it as permanent as its cause?
Answer to this problem must be that the cause is a personal being with freedom of the will.
His creating the universe is a free act independent of any prior condition.
So His act of creating can be something spontaneous and new.
So in my view, then, God existing alone without the universe is changeless and timeless.
His free act of creation is simultaneous with the universe coming into being. Therefore, God enters into time when He creates the universe.