Deuteronomy 9:18-20

CLV(i) 18 Then I cast myself down before Yahweh as the first time for forty days and forty nights. Bread I did not eat, and water I did not drink on account of all your sin which you had sinned by doing what was evil in the eyes of Yahweh your Elohim to provoke Him to vexation. 19 For I shrank away from the presence of the anger and the fury with which Yahweh was wrathful against you enough to exterminate you. But Yahweh hearkened to me even at that time. 20 Against Aaron Yahweh showed Himself exceedingly angered, enough to exterminate him. So I prayed also about Aaron at that time.