Gevurot 18:27

Orthodox Jewish Bible

²⁷ When Rav Apollos desired to go to Achaia, the Achim b’Moshiach encouraged him and wrote iggrot to Moshiach’s talmidim there to welcome him. When Rav Apollos arrived, he greatly helped the ones who through the Chen v’Chesed Hashem had come to emunah.