In this connection, and to prepare the background for a truthful repentance for the Hebrews, God says: ``Moses said to them: O, My People! you have indeed wronged yourselves by worship of the calf. So turn in repentance to your creator, and slay one another! that will be better for you in the sight of your creator. And after that incident Allah turned towards you in forgiveness, for HE is Oft,returning, Most Merciful.''