Thus Cain offered from the side appropriate to defile them. AND ABEL ALSO BROUGHT OF THE FIRSTLINGS: to amplify the higher side which comes from the side of holiness. Hence THE LORD HAD RESPECT UNTO ABEL AND TO HIS OFFERING, BUT TO CAIN AND HIS OFFERING HE HAD NOT RESPECT, i.e. God did not accept it, and therefore CAIN WAS VERY WROTH AND HIS COUNTENANCE (presence) FELL, because his presence was not received, being from the side of the left.