For ye were as sheep going astray; but are now returned unto the Shepherd and Bishop of your souls.
1 Peter 2:25
In the years following the revolt, Hadrian discriminated against all Judeo-Christian sects, but the worst persecution was directed against religious Jews. He made antireligious decrees forbidding Torah study, Sabbath observance, circumcision, Jewish courts, meeting in synagogues and other ritual practices. Many Jews assimilated and many sages and prominent men were martyred including Rabbi Akiva and the rest of the Asara Harugei Malchut (ten martyrs). This age of persecution lasted throughout the remainder of Hadrian’s reign, until 138 C.E.
Jewish Virtual Library www.jewishvirtuallibrary.org/the-bar-kokhba-revolt-132-135-ce
In the meantime the attitude of the Roman authorities had become intermittently hostile to the Jews; and after the rebellion under Hadrian it became a matter of vital importance for such as were not Jews to avoid exposing themselves to suspicion (Huidekoper, "Judaism at Rome"). The observance of the Sabbath was one of the most noticeable indications of Judaism. Hence, while in the first Christian century more or less regard and tolerance for the Jewish day were shown in Rome, even by non-Jewish Christians, in the second century the contrary became the rule (Justin Martyr, "Dial. cum Tryph." ii., § 28).
1906 Jewish Encyclopedia. jewishencyclopedia.com/articles/12966-sabbath-and-sunday