13
They were all assigned to their posts by the same method regardless of the prominence of their families - each picked his gate assignment from a hat.
13
They were assigned by families for guard duty at the various gates, without regard to age or training, for it was all decided by means of sacred lots.
13
Therefore lots were sent, or cast, evenly, both to the little and to the great, by their families, into each of the gates. (And so they all cast lots, both the lesser and the greater alike, by their families, for each of the gates.)