Mark 1:21 KJV
And they went into Capernaum; and straightway on the sabbath day he entered into the synagogue, and taught.
Mark 1:19–23 KJV Chapter Context
19
And when he had gone a little further thence, he saw James the son of Zebedee, and John his brother, who also were in the ship mending their nets.
20
And straightway he called them: and they left their father Zebedee in the ship with the hired servants, and went after him.
21
And they went into Capernaum; and straightway on the sabbath day he entered into the synagogue, and taught.
22
And they were astonished at his doctrine: for he taught them as one that had authority, and not as the scribes.
23
And there was in their synagogue a man with an unclean spirit; and he cried out,