THERE IS ONLY ONE GOD.

The foundation of the Catholic Church is monotheism, the belief in one true God. In the Old Testament period, this fundamental doctrine was revealed by God to His people, who proclaimed it everywhere (cf.
Dt 6:4-9), and Christ confirmed it (cf. Mk 12, 29 – 30). Many non-Christian groups, such as challenge the belief in the one faithful God Mormons and Hindus (religions that believe in the existence of many gods). At the same time, the doctrine forms the basis of the Church’s teaching on the Trinity, one God in three persons.
* “Hear, O Israel: the Lord our God is one Lord. Thou shalt love the Lord thy God with all thy with all your heart, with all your soul, and with all your strength. And these words that I speak to you today shall be in thy heart, and thou shalt repeat them unto thy and tell them to your sons, whether you sit in your house or travel, whether you lie or thou shalt bind them as a sign upon thy hand, and they shall be as an ornament between thine eyes, and thou shalt write.
“Thou shalt put them upon the doorposts of their house and gates.”
* Isaiah 41:4: “Who has done this? Who has done this? He that calleth the generations from the beginning. I, Yahweh, the first and the same
I am the same and the last.” Other quotes
Isaiah 40:25-28 1 Chronicles 17:20
/Z43 .10-1 3 Mk12,29
Isa 44:6-8 1 Cor 8:4- 6 J
GOD IS UNCHANGEABLE
Mormons believe that God the Father is an impermanent being, a “noble man” who was once mortal and lived on a planet with a god higher than him. After his death, he acquired esteem and was worthy of becoming a god of his part of the material universe. The Bible proves that this view is wrong. God is the same yesterday, today, and forever.
* Isaiah 40:28: “Do you not know, or have you not heard? The Lord is the everlasting God who created the ends of the earth; he will not faint nor grow weary; his wisdom cannot”.
Other quotes
Nm 23:19 Mal 3:6
Ž102, 27 – 28
Isa 43:10 – 12
Heb 13:8

THE HOLY SPIRIT IS A GOD
Those who deny the deity of Christ usually deny the existence and divinity of the Spirit Holy Spirit. Religions such as the Jehovah’s Witnesses and the Church of Christ deny the Trinity while denying the Holy Spirit. These verses help prove that the Bible does not speak of the Holy Spirit as some inanimate, impersonal force (as the Jehovah’s Witnesses believe) but that He is God, the third person of the Holy Trinity. Combined with the verses below-which point out that there is only one God, that the Father is called God, and the Son is also called God – the following passages, together with these, will complete the basic biblical overview of the Catholic doctrine of the Trinity: of one God in three persons.
* Jn 14:15-17: “If you love me, you will keep my commandments. And I will ask the Father, and he will give you another Comforter to abide with you forever – the Spirit of truth, whom the world cannot receive,
for it neither sees nor knows him. You know him, for he abides with you and will be in you.
* Jn 14:25-26: “These things I have spoken to you, while I was still with you. But the Comforter, the Holy Spirit, whom the Father will send in my name, teach you all things and bring to your remembrance all that I have said to you.”
Other quotations
Acts 5:3- 4
Sic 13, 2- 4
S/c15, 27-2 8
S/c21,9-1 1