The Trinity means that God the Father, God the Son, and God the Holy Spirit are one and the same God.
To better understand the Trinity, let’s first consider the transformation of water. Water is a liquid, but when its temperature falls below 32° F, the water turns into ice, a solid. When the water is boiled, it turns into vapor, a gas. Water, ice, and vapor have different names, different forms, and different purposes, but their substance is the same: H₂O.
It is similar to when an actor in a mono-drama plays three different characters: a father, a son, and a grandson—all having different voices. Although there are three different voices and three different roles, there is only one actor.
In the same way, even though God the Father, God the Son, and God the Holy Spirit may look different, have different names, and have appeared during different ages—the three are one God. The Trinity reveals that God administrates His salvation work while playing three roles.
For six thousand years, God has carried out His salvation work in the names of Jehovah, Jesus, and Ahnsahnghong, each according to its age.
