Johanan ben Baroka (or Johanan b. Baroka; , or sometimes spelled יוחנן בן ברוקא, both read as Yochanan ben [son of] Beroka) was a second and third generation Jewish Tanna sage (2nd century).

He was a disciple of Rabbi Yehoshua and colleague of Eleazar Chisma.Tosefta Sotah, 7:9; Ḥagigah 3a He maintained a scholarly intercourse with Johanan ben Nuri.JOHANAN B. BAROKA, Jewish Encyclopedia

He had a son, R. Ishmael ben Johanan ben Baroka, who was accounted in the fourth generation of the Jewish Tanna sages.

Teachings

A considerable number of halakhot have been handed down in his name. Many of them, particularly those concerning marital and civil affairs, were adopted as law.Eruvin 8:2; Bava Kamma 10:2; Bava Batra 8:5; Kelim, 17:11

He is also cited in the aggadah. According to him, the saying "Be fruitful, and multiply, and replenish the earth,"Genesis 1:28 implies that the duty of propagating humanity devolves upon woman as well as upon man.Yevamot 6:6 He taught that whoever profanes the name of God, even secretly, is punished publicly, whether the deed is committed intentionally or unintentionally.Pirkei Avot 4:4; Avot of Rabbi Natan, ed. Schechter, p. 35a

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