Rebbi says: Last night you said (i.e., you complained to Me) (Exodus 5:23) "And from the time I came to Pharaoh, etc." And now you stand and wax long in prayer? "Why do you cry out to Me?" Rebbi says (Exodus 14:15) "Speak to the children of Israel and have them go forward ('veyisa'u')." Have them retract ('yasiu') the things that they said. Last night they said (Ibid. 11) "Is it for lack of graves, etc.?" and now you stand and wax long in prayer (for them)? "Why do you cry out to Me?" Let them retract what they have said.