That only comes with the sixth plague; and the course of events may be traced, fairly well, by the help of the margin of the revised Version.
"The Expositor's Bible: The Book of Exodus"
G. A. Chadwick
The old women revised their prophecies.
"My Lady of the Chimney Corner"
Alexander Irvine
Fifth edition, revised and enlarged.
"Contemporary Socialism"
John Rae