Open library

Historic writings

Creeds, councils, and other public-domain texts of the church.

446 writings

Creeds

  • Martin Luther

    Luther's Little Instruction Book: The Small Catechism of Martin Luther

    Small Catechismis the abridged version of Luther's Large Catechism. Written in the traditional catechism form of a query followed by an answer, these brief Q and As explain the backbone of Lutheran theology.

  • First Council of Nicaea / Constantinople · 325 / 381

    The Nicene Creed

    The confession of the undivided church, received at Nicaea and expanded at Constantinople.

  • The early church · received form by c. 700

    The Apostles' Creed

    The short baptismal confession of the Western church.

  • Unknown · c. 500

    The Athanasian Creed

    A precise confession of the Trinity and the incarnation.

Councils

Early Church

  • Gregory Thaumaturgus

    Acknowledged Writings of Gregory Thaumaturgus

    This front matter introduces Gregory Thaumaturgus, recounting his education, conversion under Origen, episcopal ministry, and reputation for miracles. It also discusses the historical sources concerning his life and the translator’s presentation of his writings.

  • Tertullian

    Ad Martyras

    Blessed Martyrs Designate,—Along with the provision which our lady mother the Church from her bountiful breasts, and each brother out of his private means, makes for your bodily wants in the prison, accept also from me some contribution to your spiritual sustenance; for it is not good that the flesh be feasted and the spirit starve: nay, if that which is weak be carefully looked to, it is but r...

  • Tertullian

    Ad Nationes

    One proof of that ignorance of yours, which condemns[[cite:460]] whilst it excuses[[cite:461]] your injustice, is at once apparent in the fact, that all who once shared in your ignorance and hatred (of the Christian religion), as soon as they have come to know it, leave off their hatred when they cease to be ignorant; nay more, they actually themselves become what they had hated, and take to ha...

  • Pierus of Alexandria · c. 275

    A Fragment of a Work of Pierius on the First Epistle of Paul to the Corinthians

    Among the very eminent men who flourished near his own time, Eusebius mentions Pierius, a presbyter of Alexandria, and speaks of him as greatly renowned for his voluntary poverty, his philosophical erudition and his skill in the exposition of Scripture and in discoursing to the public assemblies of the Church.[[cite:1266]] He lived in the latter part of the third century, and seems to have been...

  • Irenaeus of Lyons · c. 120–202

    Against Heresies: Book I

    This history introduces us to the Church in her Western outposts. We reach the banks of the Rhone, where for nearly a century Christian missions have flourished.

  • Irenaeus of Lyons

    Against Heresies: Book II

    1. In the first book, which immediately precedes this, exposing “knowledge falsely so called,”[[verse:1TI.6.20|1 Tim.

  • Irenaeus of Lyons

    Against Heresies: Book III

    Thou hast indeed enjoined upon me, my very dear friend, that I should bring to light the Valentinian doctrines, concealed, as their votaries imagine; that I should exhibit their diversity, and compose a treatise in refutation of them. I therefore have undertaken—showing that they spring from Simon, the father of all heretics—to exhibit both their doctrines and successions, and to set forth argu...

  • Irenaeus of Lyons

    Against Heresies: Book IV

    1. By transmitting to thee, my very dear friend, this fourth book of the work which is [entitled] *The Detection and Refutation of False Knowledge*, I shall, as I have promised, add weight, by means of the words of the Lord, to what I have already advanced; so that thou also, as thou hast requested, mayest obtain from me the means of confuting all the heretics everywhere, and not permit them, b...

  • Irenaeus of Lyons

    Against Heresies: Book V

    In the four preceding books, my very dear friend, which I put forth to thee, all the heretics have been exposed, and their doctrines brought to light, and these men refuted who have devised irreligious opinions. [I have accomplished this by adducing] something from the doctrine peculiar to each of these men, which they have left in their writings, as well as by using arguments of a more general...

  • Tertullian

    Against Hermogenes

    Containing an Argument Against His Opinion that Matter is Eternal.

  • Tertullian

    Against Praxeas

    In Which He Defends, in all Essential Points, the Doctrine of the Holy Trinity. [[cite:7767]]

  • Tertullian

    Against the Valentinians

    In Which the Author Gives a Concise Account of, Together with Sundry Caustic Animadversions on, the Very Fantastic Theology of the Sect. This Treatise is Professedly Taken from the Writings of Justin, Miltiades, Irenæus, and Proculus.

  • Tertullian

    An Answer to the Jews

    It happened very recently a dispute was held between a Christian and a Jewish proselyte. Alternately with contentious cable they each spun out the day until evening.

Catechisms

Confessions