10, 11. (a) How did corruption spread after the rebellion of Adam and Eve? (b) What prophetic message did Enoch preach, and what response did he surely meet up with?

¹⁰ Consider, for example, how quickly corruption spread in the human race after Adam sinned. The Bible tells us that Adam’s firstborn son, Cain, became the first human murderer when he killed his brother Abel. (Genesis 4:8-10) After Abel’s violent death, another son was born to Adam and Eve, and they named him Seth. Of him, we read: “To Seth also there was born a son and he proceeded to call his name Enosh. At that time a start was made of calling on the name of Jehovah.” (Genesis 4:25, 26) Sadly, that “calling on the name of Jehovah” was in an apostate way.b Many years after the birth of Enosh, a descendant of Cain named Lamech composed a song for his two wives proclaiming that he had killed a young man who wounded him. He also warned: “If seven times Cain is to be avenged, then Lamech seventy times and seven.”​—Genesis 4:10, 19, 23, 24.