When they reached Ephesus, he left them there, but first he himself went into the synagogue and had a discussion with the Jews.
When they asked him to stay longer, he declined;
but on taking leave of them, he said, "I will return to you, if God wills." Then he set sail from Ephesus.
References for Acts 18:21
When he had landed at Caesarea, he went up to Jerusalem and greeted the church, and then went down to Antioch.
References for Acts 18:22
After spending some time there he departed and went from place to place through the region of Galatia and Phrygia, strengthening all the disciples.
References for Acts 18:23
Now there came to Ephesus a Jew named Apollos, a native of Alexandria. He was an eloquent man, well-versed in the scriptures.
He had been instructed in the Way of the Lord; and he spoke with burning enthusiasm and taught accurately the things concerning Jesus, though he knew only the baptism of John.
He began to speak boldly in the synagogue; but when Priscilla and Aquila heard him, they took him aside and explained the Way of God to him more accurately.
And when he wished to cross over to Achaia, the believers encouraged him and wrote to the disciples to welcome him. On his arrival he greatly helped those who through grace had become believers,
References for Acts 18:27
for he powerfully refuted the Jews in public, showing by the scriptures that the Messiah is Jesus.
References for Acts 18:28