Some thoughts from Exodus 7:20-25 (ESV)
The hard-heartedness of Pharaoh refused to take the supernatural actions of the Lord to heart.
We begin to understand Pharaoh better as we explore his stubborn refusal to accommodate the Lord’s command. Despite the miracle of turning water into blood, this emperor is unphased. He watched his magicians do the same “trick” and walked away without another thought. While this was a “first salvo” across the bow of the nation of Egypt, Pharaoh finds nothing of interest or intimidation in it. This is often the case of power and pride.
When one thinks they are invincible, they usually ignore the gracious attempts of the Lord to bring them to Himself.
What do you think? I’d love to hear!