There are Biblical laws of sowing and reaping that are explained for us in the Bible. Often, these principles are applied to money. However, these principles apply to nearly every area of life in the Kingdom of God.
Sowing and reaping is explained in the natural and the spiritual, and it appears to be a law set up in the kingdom of heaven for all believers and unbelievers outside the kingdom of heaven. This law cannot be defied if we want to succeed, like the law of gravity.