Coffman Commentaries on the Bible - Genesis 4:7
"If thou doest well, shall it not be lifted up? and if thou doest not well, sin coucheth at the door; and unto thee shall be its desire; but do thou rule over it."This is one of the most difficult and disputed verses in Genesis, the problem being the identity of what is referred to in "sin lieth at the door." The usual theory that "sin" is here characterized or personified as a "savage beast," or a "wild demon" about to spring upon Cain, and that God was warning him to rule over the "sin" and... read more
E.W. Bullinger's Companion Bible Notes - Genesis 4:7
if. The Hebrew Accent ( Pashta ) puts the emphasis on the 1st "well" and on this 2nd "if", to mark the solemn and Important alternative. sin = sin offering. Hebrew. chata. See App-43 . The word "offering" is actually added in Exodus 30:10 . Leviticus 4:3 , Leviticus 6:25 ; Leviticus 8:2 .Psalms 40:6 . Compare 2 Corinthians 5:21 .Ephesians 5:2 . lieth. Lieth is mase. Sin offering is feminine. So that the Hebrew reads "at the entrance [a male] is lying, a sin offering". shall be. Supply... read more