1 Timothy 1:3

And they arrived at Ephesus, and he left them there. Now he himself entered the synagogue and reasoned with the Jews.

but taking leave of them and saying, “I will return to you again if God wills,” he set sail from Ephesus.

Now it happened that while Apollos was at Corinth, Paul passed through the upper regions and came to Ephesus and found some disciples.

For Macedonia and Achaia were pleased to share with the poor among the saints in Jerusalem.

Now I urge you, brothers, to keep your eye on those who cause dissensions and stumblings contrary to the teaching which you learned, and turn away from them.

I marvel that you are so quickly deserting Him who called you by the grace of Christ for a different gospel,

If anyone teaches a different doctrine and does not agree with sound words—those of our Lord Jesus Christ—and with the doctrine conforming to godliness,

the Lord grant to him to find mercy from the Lord on that day—and you know very well what services he rendered at Ephesus.