Do the world and humanity need the assistant of Angel who is incarnated into the flesh?

We are Theodorism Catholic Church and not liberal catholic and we believe in main principles that Roman Catholic Church, East Orthodox Church and Lutheranism and Calvinism churches believe but we believe that God has sent an angel to help, assist & guide people & preach the everlasting gospel to them that dwell on the earth, and to every nation, and kindred, and tongue, and people.

 And we have seen his sings that he is an Angel, The Angel who glorifies the Lord Jesus Christ.

Our Belief

We believe in one God,
the Father, the Almighty,
maker of heaven and earth,
of all that is, seen and unseen.

We believe in one Lord, Jesus Christ,
the only Son of God,
eternally begotten of the Father,
God from God, light from light,
true God from true God,
begotten, not made,
of one Being with the Father;
through him all things were made.
For us and for our salvation
he came down from heaven,
was incarnate of the Holy Spirit and the Virgin Mary
and became truly human.
For our sake he was crucified under Pontius Pilate;
he suffered death and was buried.
On the third day he rose again
in accordance with the Scriptures;
he ascended into heaven
and is seated at the right hand of the Father.
He will come again in glory to judge the living and the dead,
and his kingdom will have no end.

We believe in the Holy Spirit, the Lord, the giver of life,
who proceeds from the Father [and the Son],
who with the Father and the Son is worshiped and glorified,
who has spoken through the prophets.
We believe in one holy catholic and apostolic Church.
We acknowledge one baptism for the forgiveness of sins.
We look for the resurrection of the dead,
and the life of the world to come.

 Amen.