Exodus 2:1-3

   1: And there went a man of the house of Levi, and took to wife a daughter of Levi.
   2: And the woman conceived, and bare a son: and when she saw him that he was a goodly child, she hid him three months.
   3: And when she could not longer hide him, she took for him an ark of bulrushes, and daubed it with slime and with pitch, and put the child therein; and she laid it in the flags by the river's brink.