Acts 18:19

When they arrived at Ephesus, Paul left Priscilla and Aquila there. He then went into the [Jewish] synagogue and held discussions with the Jews.

Acts 18:4

Every Sabbath day Paul held discussions in the synagogues, trying to convince [both] Jews and Greeks [i.e., Gentiles, that Jesus was the Messiah].

Acts 18:24

Now a certain Jew named Apollos, a native of Alexandria [Egypt] and an effective speaker, who was well-grounded in the [Old Testament] Scriptures, came to Ephesus.

Acts 19:1

Then, while Apollos was [still] at Corinth, Paul traveled through the [western] districts and came to Ephesus where he found some disciples.

Acts 20:16

For Paul had decided to sail on past Ephesus so he would not have to spend any time in [the province of] Asia, because he was hurrying to get to Jerusalem in time for the Day of Pentecost, if at all possible.

1 Corinthians 16:8

But I will wait [here] in Ephesus until the Day of Pentecost [Note: This was an annual Jewish festival, held at spring harvest time];

Ephesians 1:1

[This letter is from] Paul, an apostle of Christ Jesus, according to God's will, [and is being sent] to the saints [i.e., God's holy people] at Ephesus [Note: This was a major city in the western province of Asia Minor, and now a part of Turkey. The words "at Ephesus" are omitted in some manuscripts, suggesting it was a circular letter], and the faithful ones in [fellowship with] Christ Jesus [everywhere else ?].

1 Timothy 1:3

As I urged you to do when I was leaving Macedonia [See Acts 20:1ff], I want you to remain in Ephesus in order to urge certain people not to teach a different [i.e., false] doctrine,

2 Timothy 1:18

May the Lord grant that he will find mercy on that day [i.e., the day of judgment]. And you know very well the many things he did to serve [me while I was] at Ephesus.

Acts 19:17

When this incident became known to all of the Jews and Greeks [i.e., Gentiles] who lived in Ephesus, they became fearful and the name of the Lord Jesus was regarded with honor.

Acts 19:26

And now you have seen and heard, not only here in Ephesus, but throughout almost all of [the province of] Asia, that this Paul has been convincing people, [even] to the point of turning many away [from idol worship]. [He is] saying that hand-made gods [like we make] are not real [gods at all].

1 Corinthians 15:32

What benefit was it to me, from a human standpoint, if I fought wild animals in Ephesus, and [yet] the dead are not raised? [Note: This probably refers to Paul facing ferocious opposition from people there in Ephesus]. We should [just] eat and drink, for tomorrow we [may] die.

2 Timothy 4:12

But I sent Tychicus to Ephesus.

Revelation 1:11

saying, "Write down in a book what you see and send it to the seven churches: Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia and Laodicia" [Note: These seven congregations were all located in western Asia Minor].

Revelation 2:1

"Write [this] to the angel [i.e., the messenger] of the church at Ephesus [Note: These "messengers," (verses 8, 12, 18; 3:1, 7, 14) are thought by some to be evangelists]: These things are the words of the One who holds the seven stars in His right hand and walks among the seven golden lampstands:

Acts 17:2-3

As his custom was, Paul went into the synagogue, [and] for three Sabbath days [in a row] he taught them from the Scriptures,

Acts 18:21

So, he left them, saying, "I will come back to you if it is God's will." Then He sailed from Ephesus.

Treasury of Scripture Knowledge

Summary

And he came to Ephesus, and left them there: but he himself entered into the synagogue, and reasoned with the Jews.

Bible References

Ephesus

Acts 18:24
Now a certain Jew named Apollos, a native of Alexandria [Egypt] and an effective speaker, who was well-grounded in the [Old Testament] Scriptures, came to Ephesus.
Acts 19:1
Then, while Apollos was [still] at Corinth, Paul traveled through the [western] districts and came to Ephesus where he found some disciples.
Acts 20:16
For Paul had decided to sail on past Ephesus so he would not have to spend any time in [the province of] Asia, because he was hurrying to get to Jerusalem in time for the Day of Pentecost, if at all possible.
1 Corinthians 16:8
But I will wait [here] in Ephesus until the Day of Pentecost [Note: This was an annual Jewish festival, held at spring harvest time];
Ephesians 1:1
[This letter is from] Paul, an apostle of Christ Jesus, according to God's will, [and is being sent] to the saints [i.e., God's holy people] at Ephesus [Note: This was a major city in the western province of Asia Minor, and now a part of Turkey. The words "at Ephesus" are omitted in some manuscripts, suggesting it was a circular letter], and the faithful ones in [fellowship with] Christ Jesus [everywhere else ?].
1 Timothy 1:3
As I urged you to do when I was leaving Macedonia [See Acts 20:1ff], I want you to remain in Ephesus in order to urge certain people not to teach a different [i.e., false] doctrine,
2 Timothy 1:18
May the Lord grant that he will find mercy on that day [i.e., the day of judgment]. And you know very well the many things he did to serve [me while I was] at Ephesus.
2 Timothy 4:12
But I sent Tychicus to Ephesus.
Revelation 1:11
saying, "Write down in a book what you see and send it to the seven churches: Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia and Laodicia" [Note: These seven congregations were all located in western Asia Minor].
Revelation 2:1
"Write [this] to the angel [i.e., the messenger] of the church at Ephesus [Note: These "messengers," (verses 8, 12, 18; 3:1, 7, 14) are thought by some to be evangelists]: These things are the words of the One who holds the seven stars in His right hand and walks among the seven golden lampstands:

But

Acts 18:4
Every Sabbath day Paul held discussions in the synagogues, trying to convince [both] Jews and Greeks [i.e., Gentiles, that Jesus was the Messiah].
Acts 17:2
As his custom was, Paul went into the synagogue, [and] for three Sabbath days [in a row] he taught them from the Scriptures,