3 Paul wanted to take him along on the journey, so he circumcised him because of the Jews who lived in that area, for they all knew that his father was a Greek.

Read Acts 16:3 Using Other Translations

Him would Paul have to go forth with him; and took and circumcised him because of the Jews which were in those quarters: for they knew all that his father was a Greek.
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 a Greek.
so Paul wanted him to join them on their journey. In deference to the Jews of the area, he arranged for Timothy to be circumcised before they left, for everyone knew that his father was a Greek.