y. Meg. 1:11, 72b; y. Sanh. 10:5, 29c; y. Abod. Zar. 3:1, 42c; b. Pesah. 104a; b. Abod. Zar. 50a; Eccl. Rab. 9:10. Arthur Marmorstein, The Doctrine of Merits in Old Rabbinic Literature and the Old Rabbinic Doctrine of God (New York: Ktav, 1968), pp. 215–216.