Why studying the Hebrew meaning matters...
The first murder was recorded in Genesis. At chapter 4 verse 9, we have the often-quoted "...Am I my brother's keeper?"
in Hebrew, it is " Anoki Ach HaShamar".
What the word "ANOKI" means is not just "I AM". Proof is in Exodus 34:11. This is the same word Yahuah uses to command attention at his actions of driving out the Amorite, the Canaanite, the Hittite, the Perizzite, the Hivite, and the Jebusite.
So Cain was saying/asking, "Aren't you, Yahuah, my brother's guardian/keeper?"