15  Therefore the Lamanites did spare their lives, and took them captives and carried them back to the land of Nephi, and granted unto them that they might possess the land, under the conditions that they would deliver up king Noah into the hands of the Lamanites, and deliver up their property, even ^aone half of all they possessed, one half of their gold, and their silver, and all their precious things, and thus they should pay tribute to the king of the Lamanites from year to year.