It stands to reason that since Elohim created human beings in Their image this Divine Truth is why only the tripartite Elohim joined (married) man and woman will become “one flesh” through three unities: 1. Unity of Body (sexually), 2. Unity of Spirit (Heart), and 3. Unity of Emotions (Soul). These three unities are why only death can wholly, painlessly, and emotionlessly separate those whom Elohim joined.
God established that three of His seven commanded appointed times (feast days) – First Fruits, Pentecost, and Tabernacles – would be associated with two different grain harvests and one fruit of the vine harvest that took place annually in Israel. Moreover, God established that these three crops (barley, wheat, and grapes) would also depict, spiritually speaking, three classes of people. The Barley represents the holy and saintly overcomers, the Wheat represents the carnal believers, and the Grapes mostly represent the unsaved unbelievers.