No that sounds like you replacing my words with your own.
I too say that God had a motivation and I also say what that motivation is. In fact, a while ago I started a whole thread on the topic. Here is the link.
How could I know such a thing? A creator’s purpose is quite often rather evident in the thing he has created.
He started 13.8 billion years ago in our time, when the universe began. He has been working on it ever since. Though there has been “times of rest” not because He was tired but because there was was a need for Him to step back and let us do our own part.