Conceived by The Holy Spirit:
The Apostles' Creed

"I believe in God the Father Almighty, Creator of Heaven and Earth.

And in Jesus Christ His only Son, our Lord, Who was conceived by the Holy Spirit,* born of the Virgin Mary, suffered under Pontius Pilate; was crucified, dead, and buried. He descended to hell; on the third day rose again from the dead, ascended into Heaven, sits at the right hand of God the Father Almighty; thence He will 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 the life everlasting. Amen."

* This phrase has since been modified by some denominations to say: "conceived by the power of the Holy Spirit."

[The Apostles' Creed is the most widely used creed in Western Christian denominations. It was not actually composed by the Apostles, but its theological principles were current around 100 CE. It is based on a baptismal creed developed in Rome at the end of the Second Century, and its current form was established in the late Sixth or early Seventh Century. The above quotation reflects the text of the Textus Receptus dated circa 700.] 

[See J. H. Leith, Ed., Creeds of the Churches (1973).]