Justin Martyr

100 – 165

Justin Martyr was a philosopher who became a Christian and then died for it — and who, in the interval, changed the way the church thought about itself in relation to the world. He was born around 100 AD in Flavia Neapolis, in what is now Nablus in the West Bank, to a pagan family. He spent his early years doing what educated young men in the Roman empire did: studying philosophy. He moved through the Stoics, the Aristotelians, the Pythagoreans, and finally to Neoplatonism, which satisfied him longest. He did not convert to Christianity through Scripture or through preaching. He converted through encounter — an old man near Ephesus who asked him questions about the soul that Platonism could not answer, and then spoke of the Hebrew prophets. Justin kept his philosopher's cloak when he converted. He wore it as a Christian teacher in Rome, where he ran a school and wrote extensively in defense of the faith to Roman emperors. His First Apology, addressed to Emperor Antoninus Pius around 155 AD, is one of the earliest and most ambitious defenses of Christianity ever written — arguing that Christians are not seditious, not immoral, and not superstitious, and that their God is the God of reason itself. His Dialogue with Trypho records a long debate with a Jewish interlocutor and remains the most extended engagement of Christianity with Judaism from the second century. Justin's most theologically significant contribution is his development of Logos theology. Drawing on the Greek philosophical concept of the Logos — the rational principle underlying all things — he argued that Christ was not a newcomer to history but its governing principle from the beginning. Every philosopher who ever reasoned toward truth was, in some way, participating in the Logos who became flesh in Jesus. Socrates. Plato. Heraclitus. Justin claimed them all as proto-Christians without their knowledge. This is not syncretism; it is a theology of creation that takes seriously the claim that all truth is God's truth. His description of early Christian worship is the most detailed we have from the second century. He describes the Sunday gathering: the reading of the memoirs of the apostles or the writings of the prophets, the sermon, communal prayer, the breaking of bread, the distribution to those absent. He is writing a defense to skeptical emperors, so he is not romanticizing. This is documentary evidence of how early Christians actually gathered — the oldest detailed account of a church service in existence. Around 165 AD, Justin was arrested in Rome along with six companions, tried before the prefect Rusticus, and executed when he refused to sacrifice to the Roman gods. He died doing what he had always done — arguing for what he believed in the public square, at the cost of his own life.