PASSOVER RIDDLE

Who knoweth one? I know One:
One is God who is over heaven and earth.
Who knoweth two? I know two.
Two tables of the covenant; but One is our God
Who is over the heavens and the earth.

[And so on to the last verse, which is:]

Who knoweth thirteen? I know thirteen:
Thirteen divine attributes, twelve tribes, eleven stars,
Ten commandments, nine months preceding childbirth,
Eight days preceding circumcision, seven days of the week,
Six books of the Mishnah, five books of the Law,
Four matrons, three patriarchs, two tables of the covenant;
But One is our God who is over the heavens and the earth.