In the first [place] the standard of the camp of the children of Yehudah set forward according to their armies: and over his army was Nachshon the son of `Amminadav.
It happened, while Yisra'el lived in that land, that Re'uven went and lay with Bilhah, his father's concubine, and Yisra'el heard of it. Now the sons of Ya`akov were twelve.