By faith Abel made a better offering to God than Cain, and he had witness through it of his righteousness, God giving his approval of his offering: and his voice still comes to us through it though he is dead.

Not being of the Evil One like Cain, who put his brother to death. And why did he put him to death? Because his works were evil and his brother's works were good.

A curse on them! They have gone in the way of Cain, running uncontrolled into the error of Balaam for reward, and have come to destruction by saying evil against the Lord, like Korah.