Coffman Commentaries on the Bible - Genesis 4:15
"And Jehovah said unto him, Therefore, whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And Jehovah appointed a sign for Cain, lest any finding him should smite him."What was the sign or "mark" that God placed upon Cain? As far as we are able to find out, there is utterly no way whatever to determine this. Ancient traditions about it are worthless, and certainly the notion that it "was some kind of tatoo" (Neil) is equally so. Some have supposed that it was something in the... read more
E.W. Bullinger's Companion Bible Notes - Genesis 4:15
Therefore = not so (with Septuagint) This is emphasized by the Hebrew accent ( Pasha ). upon = set a sign for Cain, i.e. gave him a pledge; same word as Genesis 1:14 ; Genesis 9:12 , Genesis 9:13 , Genesis 9:17 (token). See also Exodus 4:8 , Exodus 4:9 , Exodus 4:17 , Exodus 4:28 , Exodus 4:30 ; Exodus 12:13 .Ezekiel 20:12 . read more