Who was Justin Martyr?

Understanding 1 Peter 3:15; Acts 17:22-31

Justin Martyr (c. 100-165 AD) was the first great Christian intellectual — a philosopher who converted to Christianity and then used his philosophical training to defend the faith against both Roman persecution and intellectual criticism. His writings are among the earliest and most important windows into how second-century Christians worshiped, thought, and understood their relationship to Judaism and Greco-Roman culture.

From Philosophy to Christ

Justin was born in Flavia Neapolis (modern Nablus, in the West Bank) to a pagan Greek-speaking family. He describes his intellectual journey in the Dialogue with Trypho: he studied with a Stoic teacher (who knew nothing about God), a Peripatetic (Aristotelian) teacher (who was more interested in fees than truth), a Pythagorean (who required years of music and geometry before discussing philosophy), and finally a Platonist, under whom he felt he was making progress toward understanding God.

The turning point came during a walk along the seashore, where he encountered an elderly Christian man. The old man challenged Justin's Platonic assumptions — particularly the idea that the soul is naturally immortal and can know God through its own rational powers — and pointed him to the Hebrew prophets: 'There existed, long before this time, certain men more ancient than all those who are esteemed philosophers, both righteous and beloved by God, who spoke by the Divine Spirit, and foretold events which would take place, and which are now taking place.'

Justin was convinced: 'Straightway a flame was kindled in my soul; and a love of the prophets, and of those men who are friends of Christ, possessed me.' He continued to wear the philosopher's cloak (the pallium) as a deliberate statement: Christianity was not superstition but the truest philosophy — the fulfillment of what Greek thinkers had been groping toward.

The Apologies

Justin's two Apologies (defenses) were addressed to Roman emperors and represent the earliest sustained intellectual argument for Christianity directed at political authority.

The First Apology (c. 155 AD), addressed to Emperor Antoninus Pius, makes several arguments:

1. Christians are unjustly persecuted. Justin argues that Christians are punished merely for the name 'Christian,' not for any crime. He challenges the emperor: judge us by our actions, not our label. If Christians commit crimes, punish the crimes. But mere belief in Christ is not a criminal offense.

2. Christian morality benefits the state. Christians are the empire's best citizens: they pay taxes honestly, do not commit adultery or murder, care for the poor, and pray for the emperor. Persecuting them harms the state.

3. The Logos doctrine. Justin's most influential theological contribution. Drawing on John 1:1 ('In the beginning was the Word [Logos]') and Stoic philosophy, Justin taught that the Logos — the divine reason that created and orders the universe — is Christ. Before the incarnation, the Logos was active in all human reason and truth-seeking. Therefore, anyone who lived according to reason (logos) — including Socrates, Heraclitus, and Abraham — was, in a sense, living according to Christ, even without knowing it. 'Those who lived reasonably are Christians, even though they have been thought atheists.'

This was a radical claim: Christianity was not a new religion but the full revelation of the truth that all genuine philosophy had been seeking. Greek philosophy was not the enemy of Christianity — it was its preparation.

1. Fulfillment of prophecy. Justin argues at length that the life, death, and resurrection of Jesus fulfilled specific Old Testament prophecies — evidence of divine truth that pagan religions cannot match.

The Second Apology (c. 161 AD), shorter and more urgent, was prompted by the execution of Christians under the prefect Urbicus. Justin protests the injustice and reiterates that Christians are being killed for virtue, not vice.

The Dialogue with Trypho

Justin's longest work is a record (or literary reconstruction) of a conversation with Trypho, a Jewish scholar, probably held in Ephesus. Running to 142 chapters, it is the earliest extended Christian-Jewish dialogue and addresses:

• Whether the Old Testament law is still binding (Justin argues it was temporary, fulfilled in Christ)
• Whether Jesus is the Messiah prophesied in the Hebrew Scriptures (Justin argues extensively from Isaiah, the Psalms, Daniel, and other texts)
• Whether Gentiles can be God's people without becoming Jews (Justin argues that the new covenant in Christ supersedes the Mosaic covenant)
• The nature of Christ as both God and man (Justin affirms Christ's divinity while insisting on his true humanity)

The Dialogue is notable for its relatively respectful tone — Justin treats Trypho as a genuine interlocutor, not a straw man. Both parties listen, respond, and disagree thoughtfully.

Worship in the Second Century

Justin's First Apology contains the earliest detailed descriptions of Christian worship outside the New Testament:

Baptism (Chapter 61): Candidates fast, pray, and are brought to water where they are 'regenerated' (born again) 'in the name of God, the Father and Lord of the universe, and of our Savior Jesus Christ, and of the Holy Spirit.' Justin calls this 'illumination, because those who learn these things are illuminated in their understandings.'

The Eucharist (Chapters 65-67): After baptism, the new believer joins the congregation. 'There is then brought to the president [presider] of the brethren bread and a cup of wine mixed with water; and he taking them, gives praise and glory to the Father of the universe, through the name of the Son and of the Holy Ghost, and offers thanks at considerable length for our being counted worthy to receive these things at His hands.'

Justin explicitly states: 'Not as common bread and common drink do we receive these; but as Jesus Christ our Savior, having been made flesh by the Word of God... so likewise have we been taught that the food which is blessed by the prayer of His word, and from which our blood and flesh by transmutation are nourished, is the flesh and blood of that Jesus who was made flesh.'

Sunday worship (Chapter 67): 'On the day called Sunday, all who live in cities or in the country gather together to one place, and the memoirs of the apostles or the writings of the prophets are read, as long as time permits. Then, when the reader has ceased, the president verbally instructs, and exhorts to the imitation of these good things. Then we all rise together and pray, and... bread and wine and water are brought, and the president in like manner offers prayers and thanksgivings, according to his ability, and the people assent, saying Amen. And there is a distribution to each, and a participation of that over which thanks have been given, and to those who are absent a portion is sent by the deacons. And they who are well to do, and willing, give what each thinks fit; and what is collected is deposited with the president, who succors the orphans and widows.'

This passage is invaluable — it shows that by 155 AD, Christian worship already had a recognizable structure: Scripture reading, preaching, communal prayer, Eucharist, and collection for the poor.

Martyrdom

Around 165 AD, Justin and six of his students were arrested in Rome. The prefect Rusticus examined them:

Rusticus: 'Obey the gods and submit to the kings.' Justin: 'To obey the commandments of our Savior Jesus Christ is worthy neither of blame nor of condemnation.'

After Justin refused to sacrifice, Rusticus pronounced sentence: 'Those who do not wish to sacrifice to the gods and to obey the emperor will be scourged and beheaded according to the laws.' Justin and his companions were led away and executed.

He earned his surname honestly: Justin the Martyr — the philosopher who argued for Christ with his mind and then sealed the argument with his blood.