Who taught you that
"Meanwhile a Jew named Apollos, a native of Alexandria, came to Ephesus. He was a learned man, with a thorough knowledge of the Scriptures. He had been instructed in the way of the Lord, and he spoke with great fervor and taught about Jesus accurately, though he knew only the baptism of John. He began to speak boldly in the synagogue. When Priscilla and Aquila heard him, they invited him to their home and explained to him the way of God more adequately."
— Acts 18:24-26
Alexandria ranked among the biggest cities under Rome, famous for its schools. Its Jewish community was enormous, its holy books already turned from Hebrew into Greek centuries earlier. Anyone shaped by that city learned how to hold ground before a crowd. John's washing marked repentance and pointed ahead to someone still to come. So Apollos was right as far as his information reached, and it stopped years short. The two who filled the gap sewed tents and leather, driven east when Claudius expelled the Jews from Rome. In that world a craftsman stood well below a man schooled in public argument. In Greek, one word covers how he already handled his subject and what they added, only stronger. So they did not call him wrong; they finished what he had. A speaker in that room could be contradicted on the spot in front of everyone, and they passed that up. He went on to Corinth and became one of the names people later argued over. Almost everything you do well was handed to you quietly by someone whose name is nowhere on it.