And Yahweh spake unto Moses, saying,
And it came to pass the selfsame day, that Yahweh did bring the children of Israel out of the land of Egypt by their armies.
That thou shalt set apart unto Yahweh all that first opens the womb, and every firstling that cometh of a beast which thou hast; the males shall be Yahweh's.
Sanctify unto me all the firstborn, whatsoever openeth the womb among the children of Israel, both of man and of beast: it is mine.