ACT 19:9

9 But when some unbelievers in the shul were being hardened and were disobeying, speaking Chillul Hashem of the Derech Hashem before the multitude, Rav Sha'ul withdrew from them. Rav Sha'ul took the Moshiachʼs talmidim and yom yom was saying shiurim in the [Messianic] yeshiva of Tyrannus.