And it shall come to pass in the increase, that ye shall give the fifth part unto Pharaoh, and four parts shall be your own, for seed of the field, and for your food, and for them of your households, and for food for your little ones.
In the future, when you have more, you will give one-fifth to the ruler (Pharaoh) and keep four-fifths for yourself. Use this for planting crops, eating, taking care of your family, and feeding your children.