Gather a few grocery items in a paper bag. Then, take out the items one at a time and ask your kids to guess what each item costs. Now ask them how much they would pay for each item if they were stranded in the desert and hadn't eaten in more than a week.
Discuss the fact that Esau foolishly traded the most valuable thing he had—his birthright—for a bowl of soup. Explain that when we accept Christ as our Savior, we become children of God, a birthright that we should value above everything else.
Genesis 25: 29-34