Our God is triune and is the same God in both the Old and New Testament.
Old Testament:
- Plural nouns with singular verbs (triune) [Genesis 1:1; Isaiah 54:5]
- Self-reference in plurals [Genesis 1:26; Genesis 3:22; Genesis 11:7; Isaiah 6:8]
- Explicit mention of persons in Trinity [Isaiah 48:16-17]
- Specifically mentions God The Father [Isaiah 63:16; Malachi 2:10]
- Specifically mentions God The Son [Psalm 45:6-7; Psalm 2:6-7; Psalm 2:12; Proverbs 30:4]
- God The Son has divine titles [Isaiah 9:6; Jeremiah 23:5-6]
- Specifically mentions The Holy Spirit [Genesis 1:2; Genesis 6:3; Isaiah 11:2-3; Isaiah 48:16-17; Isaiah 61:1; Isaiah 63:10]
- The Trinity is foreshadowed in benedictions [Genesis 48:15-16; Numbers 6:24-27; Isaiah 6:3]
New Testament:
- Literal mentions of the Godhead [Acts 17:29; Romans 1:20; Colossians 2:9]
- Three distinct persons of a single God who interact with each other [Matthew 3:16-17. 12:32. 17:5; Luke 3:21-22. 4:1; John 1:1-3. 6:27. 14:16-17, 26. 15:26. 16:7-16; Romans 9:5; 1 Corinthians 8:6; 2 Corinthians 4:6. 13:14; Colossians 1:15-17; Galatians 4:6; Ephesians 1:13. 2:18; Titus 2:13-14; Hebrews 1:1-3. 9:14; 1 Peter 1:2]
- Commanded to baptize in the name of all 3 [Matthew 28:19]
- (All 3 are mentioned specifically hundreds of times, so have not included a list of verses for this)
An interesting assertion of Spanish theologian Michael Servetus (ᴬᴰ1511-1553) who argued against use of the Trinity:
"In his first two books (De trinitatis erroribus, and Dialogues on the Trinity plus the supplementary De Iustitia Regni Christi) Servetus rejected the classical conception of the Trinity, stating that it was not based on the Bible. He argued that it arose from teachings of Greek philosophers, and he advocated a return to the simplicity of the Gospels and the teachings of the early Church Fathers that he believed predated the development of Nicene trinitarianism. Servetus hoped that the dismissal of the trinitarian dogma would make Christianity more appealing to believers in Judaism and Islam, which had preserved the unity of God in their teachings."
Why would it be difficult for Jews and Muslims to convert to Christianity? Because we don't believe in the same God.
As we have demonstrated above, the Christian God, the triune God, is: the God of the Old Testament, the God of the New Testament, the Christian God, the God of our people without the slightest deviation. The Jewish and Muslim Gods however are none of these.
God has not changed and we have preserved Him.
------------------The Triune Christian God is the God of our people and always has been.
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