He was teaching in their synagogues (synagōgais | συναγωγαῖς | dat pl fem), being praised by everyone.

But watch out for yourselves; they will deliver you over to local councils, and in synagogues (synagōgas | συναγωγάς | acc pl fem) you will be beaten, and before governors and kings you will be made to stand for my sake, to bear witness to them.

and the front seats in the synagogues (synagōgais | συναγωγαῖς | dat pl fem), and the places of honor at banquets.

And when the Sabbath came, he began to teach in the synagogue (synagōgē | συναγωγῇ | dat sg fem). And many, when they heard him, were astonished, saying, “Where does this man get these things? What wisdom has been given to him? How are such mighty works done through his hands? his are done

Jesus entered again into a synagogue (synagōgēn | συναγωγήν | acc sg fem), and was there. a man with a withered with hand was there.

So he traveled throughout all Galilee, preaching in their synagogues (synagōgas | συναγωγάς | acc pl fem) their throughout all Galilee, and driving out demons.

As soon as they left the synagogue (synagōgēs | συναγωγῆς | gen sg fem) they went they went to the house of Simon and Andrew, with James and John.

Suddenly there was in their synagogue (synagōgē | συναγωγῇ | dat sg fem) their a man with an unclean spirit, unclean and he cried out,

Then they went to Capernaum; and on the next Sabbath Jesus went into the synagogue (synagōgēn | συναγωγήν | acc sg fem) and began to teach.

Therefore I am sending you prophets and wise men and scribes, some of whom you will kill and crucify, and some you will flog in your synagogues (synagōgais | συναγωγαῖς | dat pl fem) and pursue from town to town,