Many scriptures testify that we worship one God:
Mosiah 3:8 And he shall be called Jesus Christ, the Son of God, the Father of heaven and earth, the Creator of all things from the beginning; and his mother shall be called Mary.
Mosiah 5:15 Therefore, I would that ye should be steadfast and immovable, always abounding in good works, that Christ, the Lord God Omnipotent, may seal you his, that you may be brought to heaven, that ye may have everlasting salvation and eternal life, through the wisdom, and power, and justice, and mercy of him who created all things, in heaven and in earth, who is God above all. Amen.
Mosiah 5:9 And it shall come to pass that whosoever doeth this shall be found at the right hand of God, for he shall know the name by which he is called; for he shall be called by the name of Christ.
Mosiah 13:28 And moreover, I say unto you, that salvation doth not come by the law alone; and were it not for the atonement, which God himself shall make for the sins and iniquities of his people, that they must unavoidable perish, notwithstanding the law of Moses.
3 Nephi 19:17-18 And it came to pass that when they had all knelt down upon the earth, he commanded his disciples that they should pray. 18. And behold, they began to pray and they did pray unto Jesus, calling him their Lord and their God.
Ether: 2:12 Behold, this is a choice land, and whatsoever nation shall possess it shall be free from bondage, and from captivity, and from all other nations under heaven, if they will but serve the God of the land, who is Jesus Christ, who hath been manifested by the things which we have written.
Ether 3:14 Behold, I am he who was prepared from the foundation of the world to redeem my people. Behold, I am Jesus Christ. I am the Father and the Son. In me shall all mankind have light, and that eternally, even they who shall believe on my name; and they shall become my sons and my daughters.
D&C 66:13 Verily, thus saith the Lord your God, your Redeemer, even Jesus Christ. Amen.
Mosiah 15:1, 2, 5 And now Abinadi said unto them: I would that ye should understand that God himself shall come down among the children of men and shall redeem his people. 2. And because he dwelleth in flesh he shall be called the Son of God, and having subjected the flesh to the will of the Father, being the Father and the Son— 5. And thus the flesh becoming subject to the Spirit, or the Son to the Father, being one God, suffereth temptation, and yieldeth not to the temptation, but suffereth himself to be mocked, and scourged, and cast out, and disowned by his people.
Alma 11:26-31 26. And Zeezrom said unto him, Thou sayest there is a true and living God? 27. And Amulek saith, Yea, there is a true and a living God. 28. Now Zeezrom saith, if there more than one God? 29. And he answereth No. 30. Now Zeezrom saith unto him again: How knowest thou these things? 31. And he saith An angel hath made them known unto me.
Alma 11:44. Now this restoration shall come to all, both old and young, both bond and free, both male and female, both the wicked and the righteous; and even there shall not so much as a hair of their heads be lost; but every thing shall be restored to its perfect frame, as it is now, or in the body, and shall be brought and be arraigned before the bar of Christ, the Son, and God the Father, and the Holy Spirit, which is one Eternal God, to be judged according to their works, whether they be good or whether they be evil.
2 Nephi 31:21 And now, behold, my beloved brethren, this is the way; and there is none other way nor name given under heaven whereby man can be saved in the kingdom of God. And now, behold, this is the doctrine of Christ, and the only and true doctrine of the Father, and of the Son, and of the Holy Ghost, which is one God, without end. Amen.
Mormon 7:7 And he hath brought to pass the redemption of the world, whereby he that is found guiltless before him at the judgment day, hath it given unto him to dwell in the presence of God in his kingdom, to sing ceaseless praises with the choirs above, unto the Father, and unto the Son, and unto the Holy Ghost, which are one God, in a state of happiness which hath no end.
D&C 20:28 Which Father, Son, and Holy Ghost are one God, infinite and eternal, without end. Amen.
Luke 10:23 All things are delivered to me of my Father; and no man knoweth that the Son is the Father, and the Father is the Son, but him to whom the Son will reveal it.
Moses 1:6 And I have a work for thee Moses, my son; and thou art in the similitude of mine Only Begotten; and mine Only Begotten is and shall be the Savior, for he is full of grace and truth; but there is no God beside me, and all things are present with me, for I know them all. 20. And it came to pass that Moses began to fear exceedingly
3 Nephi 11:27 And after this manner shall ye baptize in my name; for behold, verily I say unto you, that the Father, and the Son, and the Holy Ghost are one; and I am in the Father, and the Father in me, and the Father and I are one. 36. And thus will the Father bear record of me, and the Holy Ghost will bear record unto him of the Father and me; for the Father, and I, and the Holy Ghost are one.
2 Nephi 11:7 For if there be no Christ there be no God; and if there be no God we are not, for there could have been no creation. But there is a God and he is Christ, and he cometh in the fullness of his own time.
Helaman:14:12 And also that ye might know of the coming of Jesus Christ, the Son of God, the Father of heaven and of earth, the Creator of all things from the beginning; and that ye might know of the signs of his coming, to the intent that ye might believe on his name.
James 2:19 Thou believest there is one God; thou doest well; the devils also believe, and tremble; thou hast made thyself like unto them, not being justified.
Mosiah 16:15 Teach them that redemption cometh through Christ the Lord, who is the very Eternal Father. Amen.
Mosiah 3:5 For behold, the time cometh, and is not far distance, that with power, the Lord Omnipotent who reigneth, who was, and is from all eternity to all eternity, shall come down from heaven among the children of men, and shall dwell in a tabernacle of clay, and shall go forth amongst men, working mighty miracles, such as healing the sick, raising the dead, causing the lame to walk, the blind to receive their sight, and the deaf to hear, and curing all manner of diseases.
Mormon 9:12 Behold he created Adam, and by Adam came the fall of man., And because of the fall of man, came Jesus Christ, even the Father and the Son; and because of Jesus Christ came the redemption of man.
3 Nephi 28:10 And for this cause ye shall have fullness of joy; and ye shall sit down in the kingdom of my Father; yea, your joy shall be full, even as the Father hath given me fullness of joy; and ye shall be even as I am, and I am even as the Father; and Father and I are one:
Ether 4:12 And whatsoever thing persuadeth men to do good is of me; for good cometh of none save it be of me. I am the same that leadeth men to all good; he that will not believe my words will not believe me—that I am; and he that will not believe me will not believe the Father which sent me. For behold, I am the Father; I am the light, and the life, and the truth of the world.
Mosiah 7:27 And because he said unto them that Christ was the God, the Father of all things, and said that he should take upon him the image of man, and it should be the image after which man was created in the beginning; of in other words, he said that man was created after the image of God and that God should come down among the children of men, and take upon him flesh and blood, and go forth upon the face of the earth—
Mosiah 13:34 Have they not said that God himself should come down among the children of men, and take upon him the form of man, and go forth in mighty power upon the face of the earth?
Alma 11:38, 39 38. Now Zeezrom saith again unto him: Is the Son of God the very Eternal Father?
39. And Amulek said unto him: Yea, he is the very Eternal Father of heaven and of earth, and all things which in them is; he is the beginning and the end, the first and the last.
I Nephi 11:16, 18, 21, 32 16. And he said unto me: Knowest thou the condescension of God? 18. And he said unto me: Behold, the virgin which thou seest is the mother of the Son of God, after the manner of the flesh. 21. And the angel said unto me: Behold the Lamb of God, yea, even the Eternal Father! Knowest thou the meaning of the tree which thy father saw? 32. And it came to pass that the angel spake unto me again, saying: Look! And I looked and beheld the Lamb of God, that he was taken by the people; yea, the Son of the everlasting God was judged of the world; and I saw and bear record.
1 Nephi 13:40 And the angel spake unto me saying: These last records, which thou hast seen among the Gentiles, shall establish the truth of the first, which are of the twelve apostles of the Lamb, and shall make known the plain and precious things which have been taken away from them; and shall make known to all kindreds, tongues, and people, that the Lamb of God is the Eternal Father, and the Savior of the world; and that all men must come unto him, or they cannot be saved.
Alma 12:15 Bu this cannot be; we must come forth and stand before him in his glory, and in his power, and in his might, majesty and dominion, and acknowledge to their everlasting shame, that all his judgments are just; that he is just in all his works, and that he is merciful unto the children of men, and that he hath all power to save every man, that believeth on his name, and bringeth forth fruit meet for repentance.
1 Nephi 19:10 And the God of our fathers, which were led out of Egypt, out of bondage, and also were preserved in the wilderness by him; yea, the God of Abraham, and of Isaac, and the God of Jacob, yieldth himself according to the words of the angel, as a man, into the hands of wicked men, to be lifted up according to the words of Zenock, and to be crucified, according to the words of Neum, to be buried in a sepulchre, and according to the words of Zenos, which he spake concerning the three days of darkness, which should be a sign given of his death, unto them who should inhabit the isles of the sea; more especially given unto them which are of the House of Israel.
2 Nephi 9:5 Yea, I know that ye know, that in the body he shall show himself unto they at Jerusalem, from whence we came; for it is expedient that it should be among them; for it behooveth the great Creator that he suffereth himself to become subject unto man in the flesh, and die for all men, that all men night become subject unto him.
Timothy 2:4-5 Who is willing to have all men to be saved, and to come unto the knowledge of the truth which is in Christ Jesus, which is the Only Begotten Son of God, and ordained to be a Mediator between God and man; who is one God, and hath power over all men. 5. For there is one God, and one mediator between God and men, the man Christ Jesus;
Mark 12:34, 37 34. And Jesus answered him, The first of all the commandments is: Hearken, and hear, O Israel; the Lord our God is one Lord; 37. And the scribe said unto him, Well, Master, thou hast said the truth; for there is one God, and there is none other but him.
(MMP) He hath raised up Jesus again Psalm 13:33
Deuteronomy 6:4 Hear, O Israel; The Lord our God is one Lord;
Isaiah 43:10 Ye are my witnesses, saith the Lord, and my servant whom I have chosen; that ye may know and believe me, and understand that I am he; before me there was no God formed, neither shall there be after me.
Isaiah 44:6 Thus saith the Lord the King of Israel, and his Redeemer the Lord of hosts; I am the first, and I am the last; and besides me there is no God.
John 1:1,3 1. In the beginning was the gospel preached through the Son. And the gospel was the word, and the word was with the Son, and the Son was with God, and the Son was of God. 3. All things were made by him; and without him was not anything made which was made.
John 10:30, 33, 37, 38 30. I and my father are one. 33. The Jews answered him, saying, For a good work we stone thee not; but for blasphemy; and because that thou, being a man, makest thyself God. 37. If I do not the works of my Father, believe me not. 38. But if I do thou ye believe not me, believe the works; that ye may know, and believe, that the Father is in me, and I in him.
Isaiah 43:10-15 10. Ye are my witnesses, saith the Lord, and my servant who I have chosen; that ye may know and believe me, and understand that I am he; before me there was no God formed, neither shall there be after me. 11. I, even I, am the Lord; and beside me there is no savior. 12. I have declared, and have saved, and I have showed, when there was no strange god among you; therefore ye are my witnesses, saith the Lord, that I am God. 12. I have declared, and have saved, and I have showed, when there was no strange god among you; therefore ye are my witnesses, saith the Lord, that I am God.
13. Yea, before the day was I am he; and there is none that can deliver out of my hand; I will work, and who shall hinder it? 14. Thus saith the Lord, your Redeemer, the Holy One of Israel; For your sake I have sent to Babylon, and have brought down all their nobles, and the Chaldeans, whose cry is in the ships. 15. I am your Lord, your Holy One, the Creator of Israel, your King.
Colossians 1:16 For to him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers; all things were created by him, and for him;
John 10:18 No man taketh it from me, but I lay it down of myself. I have power to lay it down, and I have power to take it again. This commandment have I received of my Father.
Acts 4:12 Neither is there salvation in any other; for there is none other name under heaven given among men, whereby we must be saved.
Ephesians 4:6 One God and Father of all, who is above all, and through all, and in you all.
Romans 9:5 And the promises which are made unto the fathers; and of whom, as concerning the flesh, Christ was, who is God over all, blessed for ever. Amen.
Philippians 2:5,6 Let this mind be in you, which was also in Christ Jesus; 6. Who, being in the form of God, thought it not robbery to be equal with God.
Titus 2:13 Looking for that blessed hope, and the glorious appearing of the great God and our Savior Jesus Christ;
Timothy 2:4,5 4. Who is willing to have all men to be saved, and to come unto the knowledge of the truth which is in Christ Jesus, who is the Only Begotten Son of God, and ordained to be a Mediator between God and man; who is one God, and hath power over all men. 5. For there is one God, and one mediator between God and men, the man Christ Jesus;
I Corinthians 8:6 But to us there is one God, the Father, of whom are all things, and we in him; and one Lord Jesus Christ, by whom are all things, and we by him.
Isaiah 12:2 Behold,, God is my salvation; I will trust, and not be afraid; for the Lord JEHOVAH is my strength and my song; he also is become my salvation.
John 14:23, 20, 10 23. Jesus answered and said unto him, If a man love me, he will keep my words; and my Father will love him, and we will come unto him, and make our abode with him. 20. At that day ye shall know that I am in my Father, and ye in me, and I in you. 10. Believest thou not that I am in the Father, and the Father in me? The words that I speak unto you I speak not of myself, but the Father that dwelleth in me, he doeth the works.
New D&C 148:12 Adam gives up his stewardship to Christ: that which was delivered to Him as holding the keys of the universe, but retains his standing as head of the human family.
Genesis 6:56 Hence cane the saying abroad among the people, that the Son of God bath atoned for original guilt, wherein the sins of the parents cannot be answered upon the heads of the children, for they are whole from the foundation of the world.
Son of God atoned for original guilt.
Psalms 81:10 I am the Lord thy God, which brought thee out of the land of Egypt; open thy mouth wide and I will fill it.
Luke 10:23 All things are delivered to me of my Father; and no man knoweth that the Son is the Father, and the Father is the Son, but him to whom the Son will reveal it.