Renia what Muslims(a compete herecy)has to do with Christianity? Any how, just have a look at few scriptures regarding Trinity. From the old testament:
Zacharias 2/II 5-11: For I,’ saysthe Lord Yahve, ‘will be as a wall of fire all around her, and I will be the glory in her midst.’ “Up, up! Flee from the land of the north,” says the Lord Yahve; “for I have spread you abroad like the four winds of heaven,” says the Lord Yahve. “Up, Zion! Escape, you who dwell with the daughter of Babylon.” For thus says the Lord Yahve of hosts: “He sent Meto the nations which plundered you; for he who touches you touches the apple of His eye. For surely I will shake My hand against them, and they shall become spoil for their servants. Then you will know that the Lord Yahve of hostshas sent Me. “Sing and rejoice, O daughter of Zion! For behold, I am coming and I will dwell in your midst,” says the Lord Yahve. “Many nations shall be joined to the Lord Yahve in that day, and they shall become My people. And I will dwell in your midst. Then you will know that the Lord Yahve of hosts has sent Me to you.
The first Yahve, Who says “I will be as a wall of fire around her”, is the Holy Spirit . This refers to a second Yahve, Who says of Himself that “He was sent to shake His hand against the nations, and dwell in Zion and join the nations with His people”. And of course this second Yahve is Jesus Christ , Who was sent by His Father to dwell in Zion and call the nations to His Church. Finally, this second Yahve speaks of a third Yahve , who “has sent Him” and “whoever touches His people, touches the apple of His eye”. Thus, the Father and the Son and the Holy Spirit are all Yahve.
The first Yahve, Who says “I will be as a wall of fire around her”, is the Holy Spirit . This refers to a second Yahve, Who says of Himself that “He was sent to shake His hand against the nations, and dwell in Zion and join the nations with His people”. And of course this second Yahve is Jesus Christ , Who was sent by His Father to dwell in Zion and call the nations to His Church. Finally, this second Yahve speaks of a third Yahve , who “has sent Him” and “whoever touches His people, touches the apple of His eye”. Thus, the Father and the Son and the Holy Spirit are all Yahve.
It should not be seen as something strange by the reader, that the three of them have the same name. Nowadays, in every family, the entire family bears a common surname. “Yahve” therefore is not the name of a persona, as the Watchtower organization prefers to teach. “Yahve” is the name of God’s essence, We proved there, that ??Yahve?? signifies: ??the One Who Is”, i.e., that which states the essence of God, and not the particularity of His persona. And just as the members of a family have the same essence and the same name, so it is with the personae of Godhood (the Father, the Son, the Holy Spirit), who, as we just read in the Holy Bible, all have the same name: “Yahve” ? . This is the common name (let’s say, something like a surname) for the three personae, who are by nature beyond space and time , (under construct) and consequently are of the same essence.