Acts 16:3

16:3 Paul wanted Timothy to accompany him, and he took him and circumcised him because of the Jews who were in those places, for they all knew that his father was Greek.

Acts 17:2-3

17:2 Paul went to the Jews in the synagogue, as he customarily did, and on three Sabbath days he addressed them from the scriptures, 17:3 explaining and demonstrating that the Christ had to suffer and to rise from the dead, saying, “This Jesus I am proclaiming to you is the Christ.”

Acts 18:18

Paul Returns to Antioch in Syria

18:18 Paul, after staying many more days in Corinth, said farewell to the brothers and sailed away to Syria accompanied by Priscilla and Aquila. He had his hair cut off at Cenchrea because he had made a vow.

Acts 21:20-26

21:20 When they heard this, they praised God. Then they said to him, “You see, brother, how many thousands of Jews there are who have believed, and they are all ardent observers of the law. 21:21 They have been informed about you – that you teach all the Jews now living among the Gentiles to abandon Moses, telling them not to circumcise their children or live according to our customs. 21:22 What then should we do? They will no doubt hear that you have come. 21:23 So do what we tell you: We have four men who have taken a vow; 21:24 take them and purify yourself along with them and pay their expenses, so that they may have their heads shaved. Then everyone will know there is nothing in what they have been told about you, but that you yourself live in conformity with the law. 21:25 But regarding the Gentiles who have believed, we have written a letter, having decided that they should avoid meat that has been sacrificed to idols and blood and what has been strangled and sexual immorality.” 21:26 Then Paul took the men the next day, and after he had purified himself along with them, he went to the temple and gave notice of the completion of the days of purification, when the sacrifice would be offered for each of them.