Exodus 11:7b
When Pharaoh hardened his heart and refused to submit to God, He brought crushing plagues upon Egypt. The final plague was the death of all of Egypt’s firstborn. As Moses announced this plague to Pharaoh, he did so with great anger. We’re not told why, but I suspect it was because Moses was frustrated with Pharaoh’s stubbornness and saddened that things had to come to this. For a person of normal psychological makeup, it would not be pleasant to announce that every single family in a nation was about to lose its firstborn child.
But as Moses announced what was coming, he made sure Pharaoh understood that God would make a distinction between Israel and Egypt. This terrible plague would not come upon the Israelites as it would on the Egyptians. It occurs to me this little verse has much for us to consider in our day.