This passage is extremely obscure. We know not whom he slew, or on what occasion: neither what ground he had to be so confident of the Divine protection.
Related Commentaries of Genesis 4:23
Genesis 4:23
23 And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain a man to my wounding, and a young man to my hurt.