Thus saith the Lord — This is the first time that preface is used by any man, which afterwards is used so frequently by all the prophets: Israel is my son, my first — born — Precious in my sight, honourable, and dear to me.
Related Commentaries of Exodus 4:22
Exodus 4:22
22 And thou shalt say unto Pharaoh, Thus saith the LORD, Israel is my son, even my firstborn: