Many Palestinian Jews appreciated the benefits of Roman rule in guaranteeing peace and order. The Roman government tolerated regional and local religious groups and found it convenient to control Palestine through client kings like the Herods. The demand that divine honours be paid not only to the traditional Roman or similar gods but also to the emperors was not extended to Judaea except under the emperor Caligula (reigned 37–41), whose early death prevented desecration of Jerusalem’s holy sites and social unrest. It was enough that the Jews dedicated temple sacrifices and synagogues in the emperor’s honour. The privileges of Roman citizenship were possessed by some Jewish families, including that of the Apostle Paul.

In his Letter to the Romans, Paul affirmed the providential role of government in restraining evil. Christians did not need to be disaffected from the empire, though the deification of the emperor was offensive to them. Moreover, although the church as an agency of social welfare offered much to the downtrodden elements in society, the Christians did not at any stage represent a social and political threat. After the example of their master, the Christians encouraged humility and patience before wicked people. Even the institution of slavery was not the subject of fundamental Christian criticism before the 4th century. However, the church was not lost in pious mysticism. It provided for far more than the cultic (liturgical) needs of its members. Inheriting a Jewish moral ideal, its activities included providing food for the poor, orphans, and foundlings; care for prisoners; and a community funeral service.

Christianity also inherited from Judaism a strong sense of being holy, separate from idolatry and pagan eroticism. As polytheism permeated ancient society, a moral rigorism severely limited Christian participation in some trades and professions. At baptism a Christian was expected to renounce his occupation if that implicated him in public or private compromise with polytheism, superstition, dishonesty, or vice. There was disagreement about military service, however. The majority held that a soldier, if converted and baptized, was not required to leave the army, but there was hesitation about whether an already baptized Christian might properly enlist. Strict Christians also thought poorly of the teaching profession because it involved instructing the young in literature replete with pagan ideals and what was viewed as indecency. Acting and dancing were similarly suspect occupations, and any involvement in magic was completely forbidden.

The Christian ethic therefore demanded some detachment from society, which in some cases made for economic difficulties. The structure of ancient society was dominated not by class but by the relationship of patron and client. A slave or freedman depended for his livelihood and prospects upon his patron, and a man’s power in society was reflected in the extent of his dependents and supporters. In antiquity a strong patron was indispensable if one was negotiating with police or tax authorities or law courts or if one had ambitions in the imperial service. The authority of the father of the family was considerable. Often, Christianity penetrated the social strata first through women and children, especially in the upper classes. But once the householder was a Christian, his dependents tended to follow. The Christian community itself was close-knit. Third-century evidence portrays Christians banking their money with fellow believers, and widely separated groups helped one another with trade and mutual assistance.

Women in ancient society—Greek, Roman, or Jewish—had a domestic, not a public, role; feminine subordination was self-evident. To St. Paul, however, Christian faith transcends barriers to make all free and equal (Galatians 3:28). Of all ancient writers, Paul was the most powerful spokesman for equality. Nevertheless, just as he refused to harbour a runaway slave, so he opposed any practice that would identify the church with social radicalism (a principal pagan charge against it). Paul did not avoid self-contradiction (1 Corinthians 11:5, 14:34–35). His opposition to a public liturgical role for women decided subsequent Catholic tradition in the East and West. Yet in the Greek churches (though not often in the Latin) women were ordained as deacons—in the 4th century by prayer and imposition of hands with the same rite as male deacons—and had a special responsibility at women’s baptism. Widows and orphans were the neediest in antiquity, and the church provided them substantial relief. It also encouraged vows of virginity, and by 400 ce women from wealthy or politically powerful families acquired prominence as superiors of religious communities. It seemed natural to elect as abbess a woman whose family connections might bring benefactions.

The religious environment of the Gentile mission was a tolerant, syncretistic blend of many cults and myths. Paganism was concerned with success, and the gods were believed to give victory in war, good harvests, success in love and marriage, and sons and daughters. Defeat, famine, civil disorder, and infertility were recognized as signs of cultic pollution and disfavour. People looked to religion for help in mastering the forces of nature rather than to achieve moral improvement. Individual gods cared either for specific human needs or for specific places and groups. The transcendent God of biblical religion was, therefore, very different from the numerous gods of limited power and local significance. In Asia Minor Paul and his coworker St. Barnabas were taken to be gods in mortal form because of their miracles. To offer sacrifice on an altar seemed a natural expression of gratitude to any dead, or even living, benefactor. Popular enthusiasm could bestow divine honours on such heroes as dead pugilists and athletes. In the Roman Empire it seemed natural to offer sacrifice and burn incense to the divine emperor as a symbol of loyalty, much like standing for a national anthem today.

Traditional Roman religion was a public cult, not private mysticism, and was upheld because it was the received way of keeping heaven friendly. To refuse participation was thought to be an expression of disloyalty. The Jews were granted exemption for their refusal because their monotheism was an ancestral national tradition. The Christians, however, did everything in their power to dissuade people from following the customs of their fathers, whether Gentiles or Jews, and thereby seemed to threaten the cohesion of society and the principle that each group was entitled to follow its national customs in religion.

If ancient religion was tolerant, the philosophical schools were seldom so. Platonists, Aristotelians, Stoics, Epicureans, and Skeptics tended to be very critical of one another. By the 1st century bce an eclecticism had emerged, and by the 2nd century ce there had developed a common stock of philosophy shared by most educated people and by some professional philosophers, which derived metaphysics involving theories on the nature of Being from Plato, ethics from the Stoics, and logic from Aristotle. This eclectic Platonism provided an important background and springboard for early Christian apologetics. Its main outlines appear already in Philo of Alexandria, whose thought influenced not only perhaps the anonymous writer of the Letter to the Hebrews, traditionally held to be St. Paul, in the New Testament but also the great Christian thinkers St. Clement of Alexandria, Origen, and St. Ambrose of Milan. Because of this widespread philosophical tendency in ancient society, Christians could generally assume some belief in Providence and assent to high moral imperatives among their pagan contemporaries. Platonism in particular provided a metaphysical framework within which the Christians could interpret the entire pattern of creation, the Fall of humanity, the Incarnation, redemption, the church, sacraments, and last things.