During His time on earth in physical form Jesus taught and set an example for us to follow. Jesus went to convocation (assemble/congregation) at the synagogue and taught on the Sabbath Day. Jesus observed Passover and the Sabbath Day.
And they went into Capernaum; and straightway on the sabbath day he entered into the synagogue, and taught. Mark 1:21
And when the sabbath day was come, he began to teach in the synagogue: and many hearing him were astonished, saying, From whence hath this man these things? and what wisdom is this which is given unto him, that even such mighty works are wrought by his hands? Mark 6:2
And came down to Capernaum, a city of Galilee, and taught them on the sabbath days. Luke 4:31
And he was teaching in one of the synagogues on the sabbath. Luke 13:10
And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read. Luke 4:16