The answer is: 2 and a half

Deut 3:12-13

When we think about the tribes of Israel and their journey to the Promised Land, it’s fascinating to realize that two and a half tribes—Reuben, Gad, and the half-tribe of Manasseh—settled on the eastern side of the Jordan River. This decision wasn’t without complexities. They loved the lush pastures there, perfect for their cattle, and they presented a case to Moses, showing their concern for the land’s suitability. Moses eventually agreed, with the stipulation that they contribute to the defense of the others while they crossed the river into Canaan.

The East Bank has its own intrigue. It is considerably less emphasized in biblical narratives, often overshadowed by the highlights of the Promised Land filled with potent stories and symbols of fulfillment. Yet, whoever occupies a unique space carries a story with significance. You can find reminders embodied in characters like Jael or Sisera, who thus lived in that area.

Then, flip the pages to other integral flashpoints in biblical history—including moments in the ministry of Jesus where the focus crossed rivers into Gentile territory or the significance of waters in rituals and miracles.

This contributes vividly to the broader Hebrew culture of borders—not just physical lands but the spiritual ones as well. Each tribe believed strongly in its role within the collective of Israel, working toward a cohesive identity despite their geographic separations, echoing the enduring search for balance between individual needs and communal responsibilities today!