2 Esdras 5:20

20 Then, crying and mourning, I fasted seven days, as the angel Uriel had commanded me to do.

2 Esdras 5:20 In-Context

18 So get up and eat. Do not abandon us like a shepherd leaving his flock to the attacks of savage wolves."
19 "Leave me alone," I answered, "do not come near me for the next seven days. Then come back." So he left.
20 Then, crying and mourning, I fasted seven days, as the angel Uriel had commanded me to do.
21 At the end of the seven days, I was again deeply troubled,
22 but I recovered my ability to think, and again I began to speak with God Most High.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.