In the official LDS history of Joseph Smith 1:19, Joseph Smith Jr. wrote (http://scriptures.lds.org/en/js_h/1/19)
I was answered that I must join none of them, for they were all wrong; and the Personage who addressed me said that
all their creeds were an abomination in his sight; that those professors were all corrupt; that: “they draw near to me with their lips, but their hearts are far from me, they teach for doctrines the commandments of men, having a form of godliness, but they deny the power thereof.”
The primary “creeds” that Joseph Smith Jr. was referring to, were the early Christian creeds; the Apostle’s Creed, the Nicene Creed, the Athanasian Creed -- all listed below in their entirety.
Note: In these early church creeds, “Catholic” means the universal church of Jesus Christ (the body of believers), not “the Roman Catholic Church”
The Apostle’s Creed (dates to within 50 years of the death of John - the last of Christ’s original apostles)I believe in God, the Father Almighty,
the Creator of heaven and earth,
and in Jesus Christ, His only Son, our Lord:
Who was conceived of the Holy Spirit,
born of the Virgin Mary,
suffered under Pontius Pilate,
was crucified, died, and was buried.
He descended into hell.
The third day He arose again from the dead.
He ascended into heaven
and sits at the right hand of God the Father Almighty,
whence He shall come to judge the living and the dead.
I believe in the Holy Spirit, the holy *catholic church,
the communion of saints,
the forgiveness of sins,
the resurrection of the body,
and life everlasting.
Amen.
The Nicene CreedI believe in one God, the Father Almighty, Maker of heaven and earth, and of all things visible and invisible.
And in one Lord Jesus Christ, the only-begotten Son of God, begotten of the Father before all worlds; God of God, Light of Light, very God of very God; begotten, not made, being of one substance with the Father, by whom all things were made.
Who, for us men for our salvation, came down from heaven, and was incarnate by the Holy Spirit of the virgin Mary, and was made man; and was crucified also for us under Pontius Pilate; He suffered and was buried; and the third day He rose again, according to the Scriptures; and ascended into heaven, and sits on the right hand of the Father; and He shall come again, with glory, to judge the quick and the dead; whose kingdom shall have no end.
And I believe in the Holy Ghost, the Lord and Giver of Life; who proceeds from the Father and the Son; who with the Father and the Son together is worshipped and glorified; who spoke by the prophets.
And I believe one holy catholic and apostolic Church. I acknowledge one baptism for the remission of sins; and I look for the resurrection of the dead, and the life of the world to come. Amen.
The Athanasian Creed 1. Whosoever will be saved, before all things it is necessary that he hold the catholic faith;Which faith except every one do keep whole and undefiled, without doubt he shall perish everlastingly.
2. And the catholic faith is this: That we worship one God in Trinity, and Trinity in Unity;
3. Neither confounding the persons, nor dividing the substance
4. For there is one Person of the Father, another of the Son and another of the Holy Spirit.
5. But the Godhead of the Father, of the Son, and of the Holy Spirit is all one, the glory equal, the majesty co-eternal.
6. Such as the Father is, such is the Son and such is the Holy Spirit.
7. The Father uncreate, the Son uncreate, and the Holy Spirit uncreate.
8. The Father incomprehensible, the Son incomprehensible, and the Holy Spirit incomprehensible.
9. The Father eternal, the Son eternal, and the Holy Spirit eternal.
10. And yet they are not three eternals, but one eternal.
11. As also there are not three uncreated nor three incomprehensibles, but one uncreated and one incomprehensible.
12. So likewise the Father is almighty, the Son almighty, and the Holy Spirit almighty;
13. And yet they are not three almighties, but one almighty.
14. So the Father is God, the Son is God, and the Holy Spirit is God;
15. And yet they are not three Gods, but one God.
16. So likewise the Father is Lord, the Son Lord, and the Holy Spirit Lord;
17. And yet they are not three Lords, but one Lord.
18. For like as we are compelled by the Christian verity to acknowledge every person by himself to be God and Lord;
19. so are we forbidden by the catholic religion to say: There are three Gods or three Lords.
20. The Father is made of none, neither created nor begotten.
21. The Son is of the Father alone; not made nor created, but begotten.
22. The Holy Spirit is of the Father and of the Son; neither made, nor created, nor begotten, but proceeding.
23. So there is one Father, not three Fathers; one Son, not three Sons; one Holy Spirit, not three Holy Spirits.
24. And in this Trinity none is afore, nor after another; none is greater, or less than another.
25. But the whole three persons are co-eternal, and co-equal.
26. So that in all things, as aforesaid, the Unity in Trinity and the Trinity in Unity is to be worshipped.
27. He therefore that will be saved must thus think of the Trinity.
28. Furthermore it is necessary to everlasting salvation that he also believe rightly the incarnation of our Lord Jesus Christ.
29. For the right faith is that we believe and confess that our Lord Jesus Christ, the Son of God, is God and man.
30. God of the substance of the Father, begotten before the worlds; and made of the substance of His mother, born in the world.
31. Perfect God and perfect man, of a reasonable soul and human flesh subsisting.
32. Equal to the Father as touching His Godhead, and inferior to the Father as touching His manhood.
33. Who, although He is God and man, yet He is not two, but one Christ.
34. One, not by conversion of the Godhead into flesh, but by taking of the manhood into God.
35. One altogether, not by the confusion of substance, but by unity of person.
36. For as the reasonable soul and flesh is one man, so God and man is one Christ;
37. Who suffered for our salvation, descended into hell, rose again the third day from the dead;
38. He ascended into heaven, He sitteth on the right hand of the Father, God Almighty;
39. From thence He shall come to judge the living and the dead.
40. At whose coming all men shall rise again with their bodies;
41. And shall give account of their own works.
42. And they that have done good shall go into life everlasting, and they that have done evil into everlasting fire.
43. This is the catholic faith, which except a man believe faithfully, he cannot be saved.
Council of Chalcedon (451 A.D)Therefore, following the holy fathers, we all with one accord teach men to acknowledge one and the same Son, our Lord Jesus Christ, at once complete in Godhead and complete in manhood, truly God and truly man, consisting also of a reasonable soul and body; of one substance with the Father as regards his Godhead, and at the same time of one substance with us as regards his manhood; like us in all respects, apart from sin; as regards his Godhead, begotten of the Father before the ages, but yet as regards his manhood begotten, for us men and for our salvation, of Mary the Virgin, the God-bearer; one and the same Christ, Son, Lord, Only-begotten, recognized in two natures, without confusion, without change, without division, without separation; the distinction of natures being in no way annulled by the union, but rather the characteristics of each nature being preserved and coming together to form one person and subsistence, not as parted or separated into two persons, but one and the same Son and Only-begotten God the Word, Lord Jesus Christ; even as the prophets from earliest times spoke of him, and our Lord Jesus Christ himself taught us, and the creed of the fathers has handed down to us.
(More at http://www.reformed.org/documents)
...and the abominations were .... where? One must understand the origins of the early Christian creeds to understand their significance. Joseph Smith Jr. clearly understood their significance -- the Apostle's Creed, so-called because it was the belief system of Christ's apostles -- summed up the belief system of the early Christian church, the very belief system of the apostles who communed with Jesus himself.
And one last note, please take a look at the LDS articles of faith:
http://scriptures.lds.org/en/a_of_f/1
It’s what you call a “creed.”