There is only One God.
God is God and there is only One. He is known by many names: Here they are in order:
1) Jehovah-Jereh = Johovah will see, or provide. Gen. 22:14.
2) Jehovah - Ropheka = Joehovah that healeth thee. Ex. 15:26.
3) Jehovah - Nissi = Jehovah my banner Ex. 17:15.
4) Jehovah - MeKaddishkem = Jehovah that doth sanctify you. Ex. 31:13; Lev. 20:8; 21:8; 22:32; Ezek. 20:12.
5) Jehovah - Shalom = Jehovah (send ) peace. Judge. 6:24
6) Jehovah - Zidkenu = Jehovah our righteousness Jer. 23:6; 33:16.
7) Jehovah - Zeba'oth = Jehovah of hosts. 1 Sam. 1:3.
8) Jerhovah Shammah = Jehovah is there. Ezek. 48:35.
9) Jehovah - Elyon = Jehovah most high. Ps. 7:17; 47:2; 97:9.
10) Jehovah - Ro'i = Jehovah my Shepherd. Ps. 23:1
Jah is Jehovah in a special sense and relation. Jehovah as having BECOME our Salvation, He Who IS, and WAS, and IS TO COME.
El is essentially the Almighty, El is Elohim in all His strength and power. El is God omnipotent. Elohim is God the Creator putting His omnipotence into operation. Eloah is God Who wills and orders all, and Who is to be the one object of the worship of His people. El is the God Who knows all (Gen. 14:18-23). and sees all (Gen. 16:13). and that performeth all things for His people (Ps. 57:2); and in Whom all the Divine attributes are concentrated.
Eloah is Elohim. Who is to be worshipped. Eloah is God in connection with His Will rather than His power. (Deut. 32:15,17). Eloah is essentially "the living God" in contrast to inanimate idols.
Elyon (Gen. 14:18) with El, and is redered "the most high (God)". It is El and Elohim, not as the powerful Creator, but as the "possor of heaven and earth." Hence the name is associated with Christ as the Son of "the Highest" (Luke 1:35).
It is Elyon, as possessor of the earth, Who divides the nations "their inheritance". In Ps. 83:18, He is "over all the earth".
Elyon is the Dispenser of God's blessings in the earth; the blessings proceeding from a Priest Who is a King upon His throne (Gen. 14:18-22 with Zech. 6:13; 14:9).
Shaddai is in every instance translated "Almighty". It is God (El), not as the source of strength, but of grace; not as Creator, but as the Giver. Shaddai is the All-bountiful. This title does not refer to His creative power, but to His power to supply all the needs of His people. (Gen. 17:1), and is used to show Abraham that He Who called him out ot walk alone before Him could supply all his need. Even so it is the title used in 2 Cor. 6:18 where we are called to "come out" in separation from the world. It is always used in connection with El.
Adon is one of three titles (Adon, Adonai, and Adonim), all generally rendered "Lord"; but each has its own peculiar usage and association. They all denote headship in various aspects. They have to do with God as "over-lord."
Adon is the Lord as Ruler in the earth.
Adonai is the Lord in His relation to the earth; and as carrying out His purposes of blessing in the earth.
Adonim is the plural of Adon, never used of man. Adonim carries with it all that Adon does, but in a greater and higher degree; and more especially as owner and proprietor. An Adon may rule others who do not belong to him. Adonim is the Lord Who rules His own.
The Lord names in brief mentioned are then: Adon is the Lord as overlord or ruler, Adonim is the Lord as owner, Adonai is the Lord as blesser.
In brief also: God = Elohim; God = Jehovah; GOD = El; God = Eloah; Lord = Jehovah; THE LORD = Jah; Lord = Adonai; LORD = Adonim; Almighty = Shaddai; Most High = Elyon.
Then you have the combinations: Adonai Jehovah = Lord God; Jehovah Elohim = Lord God; Elyon El = Most High GOD; El Shaddai = GOD Almighty.
There you have the Hebrew... now we can go spend some time in the Greek....
GOD (Gr. Theos.) The Greek language being of human origin fails to exhibit the wonderful precision of the Hebrew, inasmuch as the language necessarily reflects, and can not go beyond the knowledge, or rather the lack of knowledge, of the Divine Being apart from revelation.
Theos corresponds, generally with Elohim of teh OT, denoting the Creator... but it corresponds also with El, and Eloah, sometimes it corresponds with Jehovah (who is Elohim in Covenant relation).
Theos is used in the NT of the Father, as the revealed God. John 1:1; Acts 17:24. It is used of the Son (Matt. 1:23; John 1:1; 20:28; Rom. 9:5; 2 Peter 1:1; 1 John 5:20; Col. 2:9; and 2 Peter. 1:3,4. It is used of the Holy Spirit. Acts 5:3, compared with v.4. It is used generically, as in John 10:34; Acts 12:22; 2 Cor. 4:4; Phil. 3:19. It is also used of false gods, as in Acts 7:43 (god).
Theotes, rendered "Deity", and used of Christ. Col. 2:9.
Theiotes, rendered "Deity" also, is Deity in the abstract. (Rom. 1:20).
Theios, rendered "Divine" and is used of Christ. 2 Peter. 1:3,4 and with the article, in Acts 17:29, where it is rendered "Godhead".
And also in the New Testament you will find: I AM, Father, Almighty, Potentate (a mighty Prince, or Ruler, used of God only in 1 Tim. 6:15; Lord (is all over the OT and NT); Emmanuel = God with us (Isa. 7:14; 8:8)... used of Christ, Matt. 1:23. Other names: Messiah, Christ, Iesous; Jesus Christ; Christ Jesus; Christ the Lord; Master; Kathegetes (Matt. 23:8, 10), Rabbi. Rabboni, The Son of God "the Resurrection and the Life" (John 11:25)," the Son of man", all judgment is committed to Him (John 5:27) in the earth....
Then there is the Spirit... the Holy Spirit... the breath of God... "God is pneuma" John 4:24. We have the operations of the Spirit... the fruits of the Spirit.... Pneuma = Spirit = ruach (in Hebrew). He is the Bestower... the Giver.... We have the "pneuma Theou" (Divine pneuma) Rom. 8:9; 1 Cor. 7:40. In short the Giver, the Power, God.
By what is written in the Holy Text, Names are very important... and God has many. So why don't we all just call Him God and be safe? because that is not what is written. "Neither is there salvation in any other: for there is none other name (vs10) under heaven given among men, whereby we must be saved." (Acts 4:12). Christ speaking: "I am come in My Father's name" (John 5:43).
Scripture says: "Jesus Christ the same yesterday, and today, and for ever." (Hebrews 13:8)... Let us see what Psalms 139 says: Whither shall I go from Thy Spirit? Or whither shall I flee from Thy presence? If I ascend up into heaven, Thou art there: If I make my bed in hell, behold, Thou art there. If I take the wings of the morning, and dwell in the uttermost parts of the sea; Even there shall Thy hand lead me, And Thy right hand shall hold me. ... How precious also are Thy thoughts unto me, O GOD! How great is the sum of them! If I should count them, they are more in number than the sand: When I awake, I am still with Thee. (Psalms 139).