Trinity

What is the Trinity? It is that 'God the Father Jehovah, God the Son Jesus and God the Holy Spirit are one and the same God.' Let me give you an example of water transformation to help you understand this better. As you know, water is liquid. It turns into ice (solid) when it is cold. When it is hot, it turns into vapor (gas). However, the essence of these three still remains the same, H2O, even though water, ice, and vapor have different names and forms. Likewise, God the Father, God the Son, and God the Holy Spirit are one and the same God, even though the holy Three have different names and perform different roles. Let's study about this step by step through the Bible.
Liquid Father
(Water) (Jehovah)
H2O God
Solid Gas Son Holy Spirit
(Ice) (Vapor) (Jesus) (?)

First, let's find out that the Father Jehovah is the Son Jesus.
Isa 9:6 For to us a child is born, … he will be called Wonderful Counselor, Mighty God, Everlasting Father.
As you know, this prophecy is surely about Christ Jesus to come. It clearly shows us that Jehovah would appear in the flesh as the Son of God, Jesus. Jehovah and Jesus are one and the same God.
(Jehovah=Jesus)
Php 2:5-8 Christ Jesus: Who, being in very nature God
The Apostle Paul recognized Jesus is Jehovah when he mastered the Bible.
Ro 9:5 Christ, who is God [Jehovah] over all, forever praised!
Who was the only one entitled to be called God at the time of Jesus? (Jehovah) The Apostle Paul testified that Jesus is God. Jesus and Jehovah are one and the same God.
Let's confirm this fact through God's creation work.
Isa 44:24 I am the LORD, who has made all things, who alone stretched out the heavens, who spread out the earth by myself.
Col 1:15-16 … the firstborn over all creation. For by him all things were created: things in heaven and on earth, visible and invisible, …
The Bible testifies that Jehovah and Jesus both created all things. They are one and the same Creator, God. If they were different, we would have two earths.
The book of Revelation also testifies that the Father is the Son.
Rev 1:8 “I am the Alpha and the Omega," says the Lord God, …
Rev 22:13-16 "I am the Alpha and the Omega (13) … I, Jesus (16)
Jehovah and Jesus are surely the same God because they are the Alpha and the Omega.
Secondly, let's confirm that the Father Jehovah is the Holy Spirit.
1 Co 2:10-11 "… The Spirit searches all things, even the deep things of
God. … no one knows the thoughts of God except the Spirit of God."
Here the Spirit is the Holy Spirit. The Bible says that the Holy Spirit knows all things of God, and that only the Spirit of God knows the thoughts of God. So, God the Father Jehovah is the Holy Spirit.
Finally, let's confirm that the Son Jesus is the Holy Spirit.
Isa 9:6 "he [Jesus] will be called Wonderful Counselor, … "
Jn 14:26 The Counselor, the Holy Spirit, whom the Father will send in my name, …
Jesus and the Holy Spirit are one and the same Counselor. They are one God.

The Father [Jehovah], the Son [Jesus], and the Holy Spirit [new name] are one God. God divided 6,000 years of His ministry into three ages for our salvation. He performed three different roles with three different names. Just as H2O changes form and name with temperature, so too God changes His role and name with the times. The Holy Spirit worked as Jehovah in the age of Father and as Jesus in the age of the Son. Therefore, the holy Three are one and the same God. This is the reality of the Trinity. God bless you.