Just suppose, Moses hadn't gone over to the burning bush. What would have happened?
Silly question - we don't know. Nobody knows what might have been.
Yet I can't help thinking that God engineered things to persuade him to come over. God revealed himself indirectly and waited for Moses to make the next move.
I think this happens quite a lot. God makes the first move and waits for us to make the second one. I see a lot of that in the Bible.
So let's try and keep our eyes open. Maybe God will make a first move for us, that we really don't want to miss.