Each descendant of Adam and Eve must choose whether he or she will listen to God or rebel against him.
OTTC GENESIS 4:15: “Therefore whoever kills Cain” or “Not so! Whoever kills Cain”
Some have argued that it was the versions that changed the reading from “Therefore whoever kills Cain.” so that it reads “Not so! Whoever kills Cain” in order to make a stronger contrast to Cain’s words in verse 14.