There is.
Mar 12:29,
And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:
A Lord is by definition one Person.
This is to confuse monotheism with the nature of God. There is nothing in that verse, just as in the Shema which it quotes, that states God is only one person.
There is one Spirit (Ephesians 4:4); even the Father (John 4:23-24), the Son (John 4:24, Ephesians 3:17, Colossians 1:27, 1 John 5:12), and the Holy Ghost (John 7:39, 2 Timothy 1:14).
There is one Lord (Ephesians 4:5); the Father (Matthew 11:25, Luke 10:21, 2 Corinthians 6:17-18), the Son (1 Corinthians 8:6, 1 Corinthians 12:3), and the Holy Ghost (2 Corinthians 3:17).
There is one God (Ephesians 4:6); the Father (James 3:9 (kjv), 1 Corinthians 8:6), the Son (Hebrews 1:8-9; John 8:58, Exodus 3:14; John 8:59, John 10:31-33), and the Holy Ghost (Acts 5:3-4, Romans 8:26-27).
I post this in obedience to Titus 2:1...
Tit 2:1, But speak thou the things which become sound doctrine:
There are not nine Persons in the Godhead.
Of course not, there are three.
The above information should be understood in light of such passages as Ephesians 4:4-6 and 1 Corinthians 12:4-6.
I would suggest reading the verses and understanding what I am saying by them.
Then, you should understand the passages that I have mentioned in light of what you have learned from that information.
Here is the same information without the verses.
There is one Spirit; the Father and the Son and the Holy Ghost.
There is one Lord; the Father and the Son and the Holy Ghost.
There is one God; the Father and the Son and the Holy Ghost.
This is true--three coequal, co-eternal, consubstantial, divine persons within the one God.
So, when it is referring to the one Spirit in Ephesians 4:4, it is not referring to the Holy Ghost only.
But it is.
When it is referring to the one Lord in Ephesians 4:5, it is not referring to the Son only.
But it is. Look at what Paul has already stated:
Eph 1:2 Grace to you and peace from God our Father and the Lord Jesus Christ.
Eph 1:3 Blessed be the God and Father of our Lord Jesus Christ, who has blessed us in Christ with every spiritual blessing in the heavenly places,
...
Eph 1:17 that the God of our Lord Jesus Christ, the Father of glory, may give you the Spirit of wisdom and of revelation in the knowledge of him, (ESV)
And when it is referring to the one God in Ephesians 4:6, it is not referring to the Father only.
Nevertheless, in Ephesians 4:6, God is defined succinctly as being the Father.
In this instance, yes.
There is one Spirit, one Lord, and one God; and He is the same Spirit, the same Lord, and the same God (1 Corinthians 12:4-6).
The one Spirit is the one Lord is the one God.
And yet, there is a continual and consistent distinction made between the Father, the Son, and the Holy Spirit.
I have shown this clearly from holy scripture to the effect that it is undeniable.
What have you shown clearly from your very few, select texts?
Here is most of the Athanaisan Creed, which helps explain things:
3. And the catholic faith is this: That we worship
one God in Trinity, and Trinity in Unity;
4.
Neither confounding the persons nor dividing the substance.
5. For there is
one person of the Father, another of the Son, and another of the Holy Spirit.
6. But the Godhead of the Father, of the Son, and of the Holy Spirit is all one,
the glory equal,
the majesty coeternal.
7.
Such as the Father is, such is the Son, and such is the Holy Spirit.
8. The
Father uncreated, the
Son uncreated, and the
Holy Spirit uncreated.
9. The Father incomprehensible, the Son incomprehensible, and the Holy Spirit incomprehensible.
10. The
Father eternal, the
Son eternal, and the
Holy Spirit eternal.
11. And yet they are not three eternals but one eternal.
12. As also there are not three uncreated nor three incomprehensible, but one uncreated and one incomprehensible.
13. So likewise the Father is almighty, the Son almighty, and the Holy Spirit almighty.
14. And yet they are not three almighties, but one almighty.
15. So t
he Father is God,
the Son is God, and
the Holy Spirit is God;
16. And
yet they are not three Gods, but one God.
17. So likewise
the Father is Lord,
the Son Lord, and
the Holy Spirit Lord;
18. And
yet they are not three Lords but one Lord.
19. For like as we are compelled by the Christian verity to acknowledge
every Person by himself to be God and Lord;
20. So are we forbidden by the catholic religion to say; There are three Gods or three Lords.
21. The Father is made of none, neither created nor begotten.
22. The Son is of the Father alone; not made nor created, but begotten.
23. The Holy Spirit is of the Father and of the Son; neither made, nor created, nor begotten, but proceeding.
24. So there is one Father, not three Fathers; one Son, not three Sons; one Holy Spirit, not three Holy Spirits.
25. And
in this Trinity none is afore or after another; none is greater or less than another.
26. But
the whole three persons are coeternal, and coequal.
27. So that in all things, as aforesaid, the Unity in Trinity and the Trinity in Unity is to be worshipped.
...
30. For the right faith is that we believe and confess that our Lord Jesus Christ, the Son of God, is God and man.
31. God of the substance of the Father, begotten before the worlds; and man of substance of His mother, born in the world.
32. Perfect God and perfect man, of a reasonable soul and human flesh subsisting.
33. Equal to the Father as touching His Godhead, and inferior to the Father as touching His manhood.
34. Who, although He is God and man, yet He is not two, but one Christ.
35. One, not by conversion of the Godhead into flesh, but by taking of that manhood into God.
36. One altogether, not by confusion of substance, but by unity of person.
https://www.ccel.org/creeds/athanasian.creed.html
