Once Abraham went into the temple of the idols in his father's house, to bring sacrifices to them, and he found one of them, Marumath by name, hewn out of stone, lying prostrate on his face before the iron god of Nahor. The idol was too heavy for him to raise it alone, and he called his father to help him put Marumath back in his place. While they were handling the image, its head dropped off, and Terah took a stone, and chiselled another Marumath, setting the head of the first upon the new body. Then Terah continued and made five more gods, and all these he delivered to Abraham, and bade him sell them in the streets of the city.
Abraham and the Patriarchs of Terah
Legends of the Jews 5:70