We believe in one God, the Father almighty, maker of heaven and earth, of things visible and invisible.
And in one Lord Jesus Christ, the Son of God, begotten of God the Father, only-begotten, that is of the substance of the Father.
God from God, light from light, true God from true God, begotten and not made; of the same nature of the Father, by whom all things came into being in heaven and on earth, visible and invisible;
Who for us men and for our salvation came down from heaven, took body, became man, was born perfectly of the holy Virgin Mary by the Holy Spirit.
By whom he took body, soul and mind and everything that is in man, truly and not in semblance.
He suffered and was crucified and was buried and rose again on the third day and ascended into heaven with the same body and sat at the right hand of the Father.
He is to come with the same body and with the glory of the Father to judge the living and the dead; of His kingdom there is no end.
We believe also in the Holy Spirit, the uncreated and the perfect; who spoke through the Law and through the Prophets and through the Gospels;
Who came down upon the Jordan, preached through the apostles and dwelled in the saints.
We believe also in only one catholic and apostolic holy Church;
In one baptism with repentance for the remission and forgiveness of sins;
In the resurrection of the dead, In the resurrection of the dead, in the everlasting judgment of souls and bodies, in the kingdom of heaven and in the life eternalin the life eternal.
You may find most of those differences you have highlighted in the Creed of the Armenian Church also in the Creed of St Epiphanius.
SCHAFF / WACE TRANSLATION (NPNF-2, Vol. XIV, pp. 164-165. The Creed Found in Epiphanius’s Ancoratus (Cap. cxx.)
“And this faith was delivered from the Holy Apostles and in the Church, the Holy City, from all the Holy Bishops together more than three hundred and ten in number.”
“In our generation, that is in the times of Valentinus and Valens, and the ninetieth year from the succession of Diocletian the tyrant, (209 This would be the year 374, that is to say seven years before this Second Ecumenical Council which was held at Constantinople in 381.) you and we and all the orthodox bishops of the whole Catholic Church together, make this address to those who come to baptism, in order that they may proclaim and say as follows:”
Epiphanius then gives this creed:
We believe in one God, the Father Almighty, maker of all things, invisible and visible. And in one Lord Jesus Christ the Son of God, begotten of God the Father, only begotten, that is of the substance of the Father, 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, both which be in heaven and in earth, whether they be visible or invisible. Who for us men and for our salvation came down, and was incarnate, that is to say was conceived perfectly through the Holy Ghost of the holy ever-virgin Mary, and was made man, that is to say a perfect man, receiving a soul, and body, and intellect, and all that make up a man, but without sin, not from human seed, nor [that he dwelt] in a man, but taking flesh to himself into one holy entity; not as he inspired the prophets and spake and worked [in them], but was perfectly made man, for the Word was made flesh; neither did he experience any change, nor did he convert his divine nature into the nature of man, but united it to his one holy perfection and Divinity. For there is one Lord Jesus Christ, not two, the same is God, the same is Lord, the same is King. He suffered in the flesh, and rose again, and ascended into heaven in the same body, and with glory he sat down at the right hand of the Father, and in the same body he will come in glory to judge both the quick and the dead, and of his kingdom there shall be no end.
And we believe in the Holy Ghost, who spake in the Law, and preached in the Prophets, and descended at Jordan, and spake in the Apostles, and indwells the Saints. And thus we believe in him, that he is the Holy Spirit, the Spirit of God, the perfect Spirit, the Spirit the Comforter, uncreate, who proceedeth from the Father, receiving of the Son, and believed on.
[We believe] in one Catholic and Apostolic Church. And in one baptism of penitence, and in the resurrection of the dead, and the just judgment of souls and bodies, and in the Kingdom of heaven and in life everlasting.
And those who say that there was a time when the Son was not, or when the Holy Ghost was not, or that either was made of that which previously had no being, or that he is of a different nature or substance, and affirm that the Son of God and the Holy Spirit are subject to change and mutation; all such the Catholic and Apostolic Church, the mother both of you and of us, anathematizes. And further we anathematize such as do not confess the resurrection of the dead, as well as all heresies which are not in accord with the true faith.
And as I have already written, we also add the anathema of the Council of Nicea, but not as it is seen in the variant of St Epiphanius but just as it is concidered to be the authentic anathema of Nicea.
I hope, the Creed of Epiphanius helps to understand the source of the Armenian Creed, that is, that it is some Jerusalemian variant of the Nicene Creed.