2 Pharaoh said, “Who is the Lord, that I should obey him and let Israel go? I do not know the Lord and I will not let Israel go.” Exodus 5:2
I can think of plenty of people today who voice this same sentiment. They don’t need God nor do they care what happens to His people.
In a sense, Pharaoh’s right. Why should he obey someone he doesn’t know? For all practical purposes, though, Pharaoh was himself a god to the people in Egypt, so why would he care what another god said or demanded.
Pharaoh had a problem on his hands but he didn’t know it yet.
God was getting ready to look after his people in a demonstrable way. Pharaoh would know it. Everyone in the palace would know it. Even most of the people of Egypt would know it.
When God chooses to move in this world, he often moves in subtle, more soft spoken ways. However, when He wants to make a point, He’ll do it in a large, unmistakable way.
We never know when, how, or why He moves as He does, by design. Don’t think, though, that He does things on a whim. On the contrary. He is a live and moving in the world; we just have a difficult time keeping up with Him.