Vayetzei - Twelve Stones

Why did Yakov take twelve stones and see if they would combine into one? If it was indicative of the fact he would have twelve children, why didn't he take one stone and see if it would separate into twelve? What is the difference between the twelve princes of Yishmael as opposed to the twelve tribes of Israel? What is the concept of the thirteenth aspect and the leap month added to the lunar calendar year? Why did Yakov specifically do this test with a stone?

Find out in this week's Parsha Podcast.

Running time: 24:37