Abraham had workers that looked after everything he owned. One of those workers was older than all the other workers, and he was in charge of all the other workers too. One day, Abraham talked to that oldest worker. He said, “I want you to make me a strong promise. So come here and put your hand under my leg.” You see, in Abraham’s culture, people sometimes made promises to each other that way. The person that made the promise, they put their hand under the other person’s leg, and that showed that they had to keep their promise.