Genesis 4:15
The LORD said to him, “Therefore whoever slays Cain, vengeance will be taken on him sevenfold.” The LORD appointed a sign for Cain, so that anyone finding him would not strike him.
World English Bible (Public Domain)
In context
Before · Genesis 4:13–14
13Cain said to the LORD, “My punishment is greater than I can bear. 14Behold, you have driven me out today from the surface of the ground. I will be hidden from your face, and I will be a fugitive and a wanderer on the earth. Whoever finds me will kill me.”
15The LORD said to him, “Therefore whoever slays Cain, vengeance will be taken on him sevenfold.” The LORD appointed a sign for Cain, so that anyone finding him would not strike him.