God had already warned Cain before he murdered his brother, but Cain had gone and done it anyway. But God still didn’t give up. He came to call Cain to repentance after he murdered his brother. No sin is too great for God’s grace.

Music Credit: J. S. Bach, “Wir eilen mit schwachen, doch emsigen Schritten,” aria from “Jesu, der du meine Seele,” BWV 78 (Leipzig, 1724).