I might as well talk about anti-Judaism in early Christianity, shouldn’t I?
First off, let’s distinguish terms. ‘Anti-Jewish’ here is not equivalent to ‘anti-Semitic’.
Anti-Semitism denotes opposition to Judaism or/and Jews based upon racial or ethnic prejudice, while
anti-Judaism is one based on religious beliefs and practices. Christianity isn’t ‘anti-Semitic’, yes, but we do have a long history of anti-Judaism, starting from the very first generations of Christians themselves.
Let’s just say that there was this pervasive anti-Jewish sentiment in early Christianity. The main point of divergence by the early Christian community from its Jewish roots was of course the belief that Jesus was the Messiah. As early as 1 Thessalonians (2:13-16) - thought nowadays to be the earliest Christian document, written around AD 51-52 - we already see St. Paul making a connection between
hoi Ioudaioi “the Judaeans” (traditionally “the Jews”) and the death of Jesus.
The early Christians, originally acting from within a Jewish context, took a page from the prophets’ calling Israel out for its sins (e.g. Nehemiah 9:26-31; 2 Chronicles 36:14-16). Early on, as part of their message towards (fellow) Jews, they emphasized the Jewish responsibility for the death of Jesus, coupled with a plea for Israel to repent and accept Jesus as the Messiah (cf. 1 Thessalonians 2:13-16; Acts 2:22-38; 3:12-26; 4:8-22; 5:29-32). They cast the Jewish rejection of Jesus in the same light as Israel’s rejection of the prophets in former times. They were drawing from an established Jewish motif: castigating the nation for their rejection of people perceived to be chosen by God and holding them responsible for whatever ills that happened afterward. This castigation is supposed to lead into a call for reform: it’s not too late, you still have a chance, change your minds and turn away from your sins. In the same vein, the early Christians basically saw themselves as the faithful remnant, while indicting their Jewish brothers for their unbelief towards Jesus and at the same time, calling them to repentance. When the followers of Israel’s Messiah find themselves persecuted and ostracized by the official leadership of Israel, it is no wonder than an element of ‘anti-Jewishness’ can be detected.
Given the original Jewish context of this rhetoric, it’s not surprising that the two most Jewish gospels of the four, Matthew and John, are at the same time, quite ironically, the most ‘anti-Jewish’. While Matthew tries hard to portray Jesus as the Jewish Messiah who fulfilled the Jewish Scriptures, the antagonists in his gospel are “the scribes and the Pharisees.” In fact, his gospel is the one which has that infamous line in 27:25. John, while he records Jesus saying, “Salvation is from the Jews,” often (but not always, note) casts “the Jews” in antagonistic roles toward Jesus.
One thing we could notice about Christianity of the first two centuries is the gradual intensification of anti-Judaism. As the rift between Christianity and Judaism grew wider apart, so did the conflict between them become more and more pronounced. Still, there was some regional variation in anti-Judaism: it was found mainly in areas where Christianity was strong, especially in cities with mixed pagan and Jewish populations, places where religious rivalries were more likely to be expressed openly. (In other words, places like Rome, Syria and Asia Minor.) In some regions like Judaea and Greece, it was less pronounced, perhaps because the population constituency and blend of rivalries were different.
Within Christianity there was a range of attitudes over Judaism: on the one hand it included criticism - often harsh - of Judaism and non-Christian Jews by both fellow Jews (such as Matthew and John, and perhaps the unknown authors of Hebrews and the
Epistle of Barnabas) and non-Jews (Ignatius of Antioch, Marcion, Melito of Sardis, the author of the
Epistle to Diognetus); on the other hand, it involved benign neglect (gnostics like Valentinus) and accommodation to Judaism by absorbing and adapting elements and aspects of it (cf. the Didache and the prayers embedded within the
Apostolic Constitutions).
An unfortunate side effect of this rhetoric is that less focus is made on the Roman culpability for the crucifixion. While increasing blame was placed on the Jews (oftentimes using hostile rhetoric that would sound offensive in this post-Holocaust world), the Romans, curiously, were increasingly whitewashed. While the earliest tradition (recorded in Paul’s letters and the gospels) included Roman and Jewish cooperation in the death of Jesus, in subsequent tradition history Christians would emphasize the role of each party to varying degrees: if 100% of the guilt must be assigned, some accounts tended to divide it evenly while others appeared to be much closer to total guilt/innocence. In the latter scenario it was nearly always in the direction of Jewish guilt/Roman innocence.
In its most extreme form, the Romans are totally excused of all blame - the crucifixion is made to be an act perpetrated solely by “the Jews.” Sometimes, it is no longer even Pilate that sentences Jesus to death, but
Herod (the closest they could get to a Jewish equivalent to Pilate - a political ruler). For the most extreme specimens of anti-Jewish rhetoric in late 2nd century Christianity, you have the
Gospel of Peter and St. Melito of Sardis’
Sermon on the Passover.